Best Second Trimester Pregnancy Sleep Positions for Comfort & Safety

Quick take: In the second trimester, the safest sleep position is on your left side, supported by pillows or a wedge. Sleeping on your back should be avoided once the uterus grows, and using pillows can ease back pain, heartburn, and leg cramps. Small adjustments—like a pillow between your knees or a wedge under your belly—can make side-sleeping far more comfortable and help you wake up feeling refreshed.

It’s 2 a.m., your belly is growing, and you’re tossing and turning, wondering if the way you’re sleeping could hurt your baby. You’ve heard conflicting advice—some say “left side is best,” others claim “any side is fine,” and a few well-meaning friends insist you should avoid your back at all costs. The good news is that the science is clear enough to give you a practical game plan.

In the second trimester, many women experience new aches, heartburn, and a feeling of heaviness that can make any sleep position feel uncomfortable. Your growing uterus shifts your center of gravity, your ligaments loosen, and even the most seasoned side-sleeper might find themselves waking up on their back. Understanding the safety differences between side-sleeping and back-sleeping, and learning how to use pillows and supports, can turn restless nights into restorative sleep.

Below we break down everything you need to know about second trimester pregnancy sleep positions: the safest posture, why the left side matters, how many pillows to use, how to manage common discomforts, and practical tips for transitioning to side-sleeping. We’ll also cover how sleep positions might affect your baby, what to do if you wake up on your back, and how to troubleshoot nighttime heartburn or leg cramps. Plus, we’ll answer the most-asked questions, debunk a few myths, and give you a quick checklist you can start using tonight.

What is the safest sleep position during the second trimester of pregnancy?

The consensus among obstetric societies—including the American College of Obstetricians and Gynecologists (ACOG) and the UK's National Institute for Health and Care Excellence (NICE)—is that the left-side position is the safest for most pregnant people in the second trimester. Lying on the left improves blood flow back to the heart, reduces pressure on the inferior vena cava (the large vein that returns blood from the lower body), and optimizes oxygen delivery to the placenta. This isn’t just theoretical: studies have shown that left-side sleeping can increase uterine blood flow by up to 20% compared to back-sleeping.

When you lie on your left, the uterus shifts slightly away from the liver, which sits on the right side of the abdomen. This positioning helps prevent the uterus from compressing the liver and aorta, two structures critical for maternal circulation. The aorta, for example, is the main artery that carries oxygen-rich blood from the heart to the rest of the body, including the uterus. Compressing it can reduce blood flow to the placenta, which is why left-side sleeping is often recommended as the "gold standard" for pregnancy sleep.

While the left side is ideal, the right side is still considered safe, especially if you find it more comfortable. The key is to avoid the supine (back-lying) position once the uterus reaches about 20 weeks, because the growing uterus can press on the vena cava and limit blood return, potentially lowering blood pressure and oxygen to the baby. If you’re someone who naturally rolls onto your right side during the night, don’t stress—your body is likely adjusting to what feels best for you and your baby.

One important caveat: if you have a condition like placenta previa (where the placenta covers the cervix) or a history of preterm labor, your provider might give you more specific guidance. Always check with them if you’re unsure about what’s safe for your unique pregnancy.

Can I sleep on my side in the second trimester and why is it recommended?

Beyond circulation, side-sleeping can alleviate common second-trimester discomforts. The hormone relaxin loosens ligaments, making the lower back more vulnerable to strain. By sleeping on your side, you keep the spine in a more neutral alignment, which can lessen back pain and hip aches. Additionally, side-sleeping can reduce gastroesophageal reflux, as the stomach sits lower when you’re not lying flat. This is why many women find that side-sleeping helps with heartburn, a common complaint in the second trimester.

Many parents-to-be report that a gentle pillow between the knees keeps the hips aligned and prevents the lower back from arching. One reader told us she “started using a pregnancy pillow at 22 weeks and finally slept through the night without waking from a sudden heartburn.” Small adjustments like these can make side-sleeping both safe and comfortable. If you’re not used to side-sleeping, it might feel awkward at first, but your body will adapt—especially if you give it a little support with pillows.

Another benefit of side-sleeping is that it can reduce the risk of snoring and sleep apnea, which are more common in pregnancy due to nasal congestion and weight gain. If you or your partner notice that you’re snoring more than usual, switching to side-sleeping might help you breathe easier and get better-quality rest.

Is it okay to sleep on my back during the second trimester?

During the early weeks of pregnancy, sleeping on your back is generally fine because the uterus is still small. However, by the second trimester—typically after 20 weeks—most obstetric guidelines advise against supine sleep. The uterus can now exert enough pressure on the inferior vena cava to impede venous return, leading to what clinicians call supine hypotensive syndrome. This isn’t just uncomfortable—it can reduce blood flow to the placenta and, in rare cases, affect fetal oxygen levels.

Symptoms of supine hypotension include dizziness, shortness of breath, palpitations, and a feeling of “heaviness” in the chest. If you wake up feeling light-headed or notice a sudden drop in blood pressure after lying on your back, it’s a sign to shift to a side position. Some women find that a small pillow placed behind the back can discourage rolling onto their back during the night. Others use a body pillow or a rolled-up towel to create a physical barrier that keeps them on their side.

That said, occasional brief periods on the back—such as when reading a book or watching TV—are not harmful. The risk only becomes significant when you spend an extended period (more than 30 minutes) in the supine position while sleeping. If you’re uncertain whether you’re spending too much time on your back, a simple trick is to place a tennis ball in a pocket of a shirt and wear it on the back; the discomfort will naturally turn you onto your side. You can also try setting an alarm for 20–30 minutes if you’re lying on your back during the day to remind yourself to shift positions.

If you wake up on your back, don’t panic. Most women naturally shift positions during the night, and brief periods on your back are unlikely to cause harm. The key is to start the night on your side and use pillows or other supports to help you stay there. If you’re consistently waking up on your back and feeling unwell, talk to your provider about strategies to help you stay on your side more comfortably.

How many pillows should I use for comfortable sleep in the second trimester?

There’s no one-size-fits-all answer, but most experts—including the Royal College of Obstetricians and Gynaecologists (RCOG)—recommend using at least three pillows or a specialized pregnancy pillow to support the body. A typical setup might include:

• A firm pillow placed behind the back or between the knees to keep the hips aligned.
• A wedge pillow under the belly to relieve pressure on the uterus.
• A small pillow or rolled towel under the head to accommodate any changes in neck alignment.

These supports help maintain a neutral spine, reduce strain on the lower back, and keep the uterus from compressing major vessels. The goal isn’t just comfort—it’s also about preventing long-term aches and pains. For example, a pillow between your knees can prevent your top leg from pulling your pelvis out of alignment, which can lead to hip or lower back pain over time.

Here’s a quick comparison of common pillow options:

If you’re not sure which pillow setup is right for you, start with what you have at home. A regular bed pillow between your knees and a folded towel under your belly can work just as well as a pricey pregnancy pillow. The key is to experiment and find what feels most supportive for your body. Some women also find that a small pillow under their ribcage can help with heartburn, while others prefer a pillow behind their back for extra support.

Don’t forget about your mattress, either. If your mattress is too soft, even the best pillow setup won’t help. A medium-firm mattress is ideal for pregnancy because it provides enough support to keep your spine aligned while still cushioning your hips and shoulders. If your mattress is too firm, a memory foam topper can add the extra cushioning you need.

Do sleep positions affect fetal development in the second trimester?

Current evidence suggests that the position you sleep in does not directly alter fetal growth or development, as long as you avoid prolonged supine sleep that could reduce placental blood flow. The placenta is designed to adapt to changes in maternal circulation, and short periods on the back are unlikely to cause harm. However, research has shown that chronic poor sleep quality—whether from discomfort, stress, or frequent awakenings—can indirectly affect fetal development by increasing maternal stress hormones like cortisol.

Persistent reduced blood flow from sleeping on your back for many hours could theoretically limit oxygen and nutrient delivery to the fetus. ACOG notes that while the absolute risk is low, the safest practice is to favor side-sleeping, especially on the left, to maintain optimal uteroplacental perfusion. One large study published in *The Journal of Maternal-Fetal & Neonatal Medicine* found that women who slept on their backs in the third trimester had a slightly higher risk of stillbirth, but this risk was not observed in the second trimester. Still, adopting side-sleeping habits early can help you avoid potential issues later in pregnancy.

In practical terms, most women who adopt side-sleeping report feeling more energetic during the day, which may indirectly benefit fetal development by supporting maternal health. Good sleep quality helps regulate hormones like progesterone and oxytocin, which are essential for a healthy pregnancy. It also reduces inflammation and supports immune function, both of which are important for fetal growth.

If you’re concerned about fetal movement, pay attention to your baby’s patterns. Most providers recommend tracking fetal kicks starting around 28 weeks, but you can start noticing patterns earlier. If you notice a sudden decrease in movement, it’s always a good idea to check in with your provider—regardless of your sleep position.

What are the best sleep positions for relieving back pain in the second trimester?

Back pain is a hallmark complaint in the second trimester, driven by the hormone relaxin and the added weight of the uterus. The most effective position for easing back discomfort is the side-lying posture with a pillow between the knees. This alignment keeps the pelvis level and reduces strain on the lumbar spine. If you’re a back-sleeper, you might find that even a few minutes on your side can make a big difference in how your back feels in the morning.

If you prefer to sleep on your back for short periods, place a small pillow under the lower back to create a gentle lumbar curve. This “lumbar roll” can help maintain the natural lordotic curve and lessen pressure on the intervertebral discs. For those who find side-sleeping uncomfortable, a slight semi-fetal position—knees drawn gently toward the chest—can also relieve tension. Just be sure not to curl up too tightly, as this can restrict blood flow to your legs.

Another useful tip is to stretch gently before bed. A simple “cat-cow” yoga sequence or a few minutes of hip-flexor stretching can reduce muscle tightness and prepare the body for a more relaxed sleep posture. Combining these stretches with pillow support often results in noticeable pain reduction within a few nights. You can also try a warm bath or a heating pad on your lower back before bed to relax tight muscles.

If your back pain is severe or persistent, talk to your provider about physical therapy or prenatal massage. A physical therapist can teach you exercises to strengthen your core and improve your posture, while a prenatal massage therapist can help relieve muscle tension and improve circulation. Both can be safe and effective ways to manage back pain during pregnancy.

Can I use a pregnancy wedge pillow for second trimester sleep?

Yes—pregnancy wedge pillows are especially helpful in the second trimester. They provide targeted support under the belly, which can alleviate pressure on the uterus and reduce heartburn by keeping the stomach below the esophagus. The wedge’s incline also encourages side-sleeping by gently tilting the torso. Many women find that a wedge pillow helps them stay comfortable even as their belly grows larger.

When selecting a wedge pillow, look for one with a firm, supportive foam core and a breathable cover. A wedge that is about 12–14 inches high and 20 inches long fits most body types and can be placed under the abdomen while you lie on your left side. Some mothers pair the wedge with a regular pillow behind their back for added stability. If you’re a hot sleeper, look for a wedge with a cooling gel layer or a breathable fabric like bamboo or cotton.

It’s worth noting that a wedge is not a substitute for a full-body pregnancy pillow if you need comprehensive support. However, many clinicians—including those at the Mayo Clinic—recommend a wedge as a cost-effective, space-saving option that still delivers the key benefits of abdominal elevation and improved circulation. If you’re not sure whether a wedge is right for you, try propping up your belly with a folded towel or a small pillow to see if it helps.

Another benefit of a wedge pillow is that it can be used in other ways, too. For example, you can place it behind your back while sitting up in bed to read or watch TV, or use it to elevate your legs if you’re experiencing swelling. Some women even use it postpartum to support their baby during breastfeeding or to prop themselves up while recovering from a C-section.

How to transition to side sleeping in the second trimester

Switching from a back-sleeping habit to side-sleeping can feel awkward at first, but a few simple strategies make the transition smoother. Start by placing a firm pillow or a rolled-up towel behind your back before you fall asleep. This barrier gently nudges you onto your side and prevents you from rolling onto your back during the night. You can also try placing a pillow in front of you to hug, which can make side-sleeping feel more secure and comfortable.

Another technique is to use a “sleep position trainer”—a small, breathable strap that wraps around the torso and keeps the shoulders slightly rotated. Many pregnant women find that this subtle cue helps them stay on their side without feeling constrained. Combine the strap with a pregnancy pillow that supports the belly and knees, and you’ll create a comfortable, self-reinforcing system. If you don’t want to invest in a trainer, a soft scarf or a long towel can work just as well.

Lastly, practice side-sleeping during the day. Lie on a couch or a recliner with a pillow between your knees for 10–15 minutes. This “training” helps your muscles and joints adapt to the new posture, making it easier to maintain the position when you’re exhausted at night. You can also try sleeping on your side for short naps to get used to the feeling. Over time, your body will adjust, and side-sleeping will start to feel more natural.

If you’re struggling to stay on your side, try setting up your sleep environment to make it easier. For example, place a nightlight on the side of the bed where you want to sleep, or use a white noise machine to create a soothing atmosphere. You can also try sleeping on a slightly inclined surface, like a wedge pillow or an adjustable bed, to make side-sleeping more comfortable.

What to do if you wake up on your back in the second trimester

Waking up on your back during the second trimester can be alarming, but it’s usually not a cause for concern. Most women naturally shift positions multiple times during the night, and brief periods on your back are unlikely to harm you or your baby. The key is to start the night on your side and use supports to help you stay there. If you wake up on your back, simply roll onto your left side and try to fall back asleep.

If you’re consistently waking up on your back and feeling unwell, there are a few strategies you can try. First, place a firm pillow or a rolled-up towel behind your back to discourage rolling. You can also try wearing a sleep position trainer or a soft scarf tied loosely around your torso to keep you on your side. Some women find that placing a pillow in front of them to hug helps them stay in position.

Another option is to use a body pillow or a pregnancy pillow that wraps around your entire body. These pillows create a physical barrier that makes it harder to roll onto your back. If you’re still struggling, talk to your provider about other strategies, such as using a wedge pillow or adjusting your sleep environment.

If you wake up on your back and feel dizzy, lightheaded, or short of breath, it’s a sign that your body isn’t tolerating the position well. In this case, it’s especially important to shift to your side and use pillows to support your body. If these symptoms persist, talk to your provider—they can help you troubleshoot and ensure that there aren’t any underlying issues contributing to your discomfort.

How sleep positions affect heartburn in the second trimester

Heartburn is a common complaint in the second trimester, thanks to the hormone progesterone, which relaxes the lower esophageal sphincter (the muscle that keeps stomach acid from flowing back into the esophagus). Sleeping on your left side can help reduce heartburn by keeping the stomach below the esophagus, which makes it harder for acid to travel upward. In contrast, sleeping on your right side can worsen heartburn because it allows the stomach to sit higher than the esophagus.

If you’re prone to heartburn, try elevating the head of your bed by 6–8 inches. You can do this by placing a wedge pillow under your upper body or by propping up the head of your mattress with a few books or a bed riser. This slight incline helps gravity keep stomach acid where it belongs. Avoid eating large meals or spicy foods close to bedtime, as these can trigger heartburn. Instead, opt for a light snack like yogurt or a banana if you’re hungry before bed.

Another tip is to avoid lying down for at least 2–3 hours after eating. If you need to rest, try sitting up in a recliner or propping yourself up with pillows. You can also try sipping on ginger tea or chewing gum to stimulate saliva production, which can help neutralize stomach acid. If heartburn is keeping you up at night, talk to your provider about safe antacids or other remedies that can help.

If you’re using a pregnancy pillow, position it so that your upper body is slightly elevated. This can help prevent acid reflux and make it easier to breathe. Some women also find that sleeping with a pillow under their ribcage helps keep their stomach in a better position for digestion.

Can sleep positions help with leg cramps in the second trimester?

Leg cramps are another common complaint in the second trimester, often striking in the middle of the night and disrupting sleep. These cramps are usually caused by a combination of factors, including changes in circulation, dehydration, and mineral imbalances (like low magnesium or calcium). Sleeping on your left side can help improve circulation to your legs, which may reduce the frequency and intensity of cramps.

To further prevent leg cramps, try placing a pillow between your knees to keep your hips aligned and reduce pressure on your lower back. You can also try flexing your feet before bed or doing gentle calf stretches to keep your muscles loose. If you wake up with a cramp, try straightening your leg and flexing your foot toward your shin to stretch the calf muscle. A warm bath or a heating pad on your legs before bed can also help relax tight muscles.

Staying hydrated and eating a balanced diet can also help prevent leg cramps. Foods rich in magnesium (like bananas, spinach, and almonds) and calcium (like dairy products and leafy greens) can support muscle function. If you’re prone to cramps, talk to your provider about whether a magnesium supplement might be right for you. Just be sure to choose a prenatal-safe option and follow your provider’s dosage recommendations.

If leg cramps are severe or persistent, talk to your provider. In rare cases, they can be a sign of a more serious condition, like deep vein thrombosis (DVT), which requires medical attention. Signs of DVT include swelling, redness, or warmth in one leg, as well as pain that worsens when you flex your foot. If you notice these symptoms, call your provider right away.

Second trimester sleep position recommendations

Summarizing the guidance from ACOG, NHS, and other leading bodies, here are the top recommendations for the second trimester:

• Prioritize left-side sleeping; right-side is acceptable if more comfortable.
• Avoid prolonged supine sleep—use pillows or a body-positioner to stay on your side.
• Use a pregnancy pillow or a combination of pillows to support the belly, back, and knees.
• Consider a wedge pillow for heartburn relief and to keep the uterus slightly elevated.
• Maintain a supportive mattress—firm enough to keep the spine aligned but soft enough to cushion pressure points.
• If you wake up on your back, simply roll onto your left side and try to fall back asleep.
• Stay hydrated and eat a balanced diet to help prevent leg cramps and other discomforts.

These recommendations are designed to help you sleep safely and comfortably during the second trimester. However, every pregnancy is unique, so it’s important to listen to your body and adjust as needed. If you’re struggling with sleep or experiencing persistent discomfort, talk to your provider—they can offer personalized advice and help you find solutions that work for you.

Best mattress for second trimester sleep

A supportive mattress is the foundation of good sleep hygiene during pregnancy. The ideal mattress should balance firmness (to keep the spine neutral) with enough give to relieve pressure on the hips and shoulders. The Mayo Clinic recommends a medium-firm mattress—often rated 5–7 on a 10-point firmness scale—for most pregnant people. This level of firmness provides enough support to keep your spine aligned while still cushioning your growing belly and sensitive pressure points.

If you currently sleep on a very soft mattress, consider adding a firm topper or a plywood board underneath the sheets to increase support. Conversely, if your mattress is too firm, a plush mattress pad or a memory-foam topper can provide the needed cushioning without compromising spinal alignment. The goal is to find a balance that supports your body while also allowing you to sink in just enough to relieve pressure.

Many brands now market “pregnancy-ready” mattresses that incorporate zones of varying firmness, designed to support the belly while keeping the lower back aligned. While these can be a worthwhile investment, a well-chosen pillow and proper sleeping position are often enough to achieve comfort without a brand-new mattress. If you’re considering a new mattress, look for one with good edge support, as this can make it easier to get in and out of bed as your belly grows.

Another factor to consider is temperature regulation. Many pregnant women experience night sweats or hot flashes, so a mattress with cooling properties—like gel-infused memory foam or breathable latex—can help you stay comfortable. If you’re a hot sleeper, look for a mattress with a breathable cover made from materials like bamboo or cotton.

If you’re not sure whether your mattress is providing enough support, pay attention to how you feel in the morning. If you wake up with back pain, stiffness, or numbness in your hips or shoulders, it might be time to adjust your setup. A mattress topper or a new pillow can often make a big difference without the need for a full mattress replacement.

How to create a sleep-friendly environment in the second trimester

Your sleep environment plays a big role in how well you rest during pregnancy. A few simple adjustments can make your bedroom a sanctuary for sleep, helping you fall asleep faster and stay asleep longer. Start by keeping your bedroom cool, dark, and quiet. The ideal temperature for sleep is around 65–68°F (18–20°C), so adjust your thermostat or use a fan to create a comfortable atmosphere.

Blackout curtains or a sleep mask can help block out light, while earplugs or a white noise machine can drown out disruptive sounds. If you’re sensitive to noise, try using a white noise app or a fan to create a soothing background hum. You can also try aromatherapy—lavender or chamomile scents are known for their calming properties and can help you relax before bed.

Your bedtime routine matters, too. Try to go to bed and wake up at the same time every day, even on weekends. This helps regulate your body’s internal clock and makes it easier to fall asleep at night. In the hour before bed, wind down with a relaxing activity, like reading a book, taking a warm bath, or practicing gentle prenatal yoga. Avoid screens (like phones, tablets, or TVs) during this time, as the blue light they emit can interfere with your body’s production of melatonin, the hormone that regulates sleep.

If you’re struggling with insomnia or anxiety, try journaling before bed. Writing down your thoughts or making a to-do list for the next day can help quiet your mind and make it easier to fall asleep. You can also try a guided meditation or a deep-breathing exercise to relax your body and prepare for sleep. If anxiety is keeping you up at night, talk to your provider—they can offer strategies or refer you to a therapist who specializes in prenatal mental health.

When to seek help for second-trimester sleep problems

While some sleep disruptions are normal during pregnancy, persistent or severe sleep problems can affect your health and well-being. If you’re struggling with insomnia, excessive daytime sleepiness, or frequent nighttime awakenings, it’s important to talk to your provider. They can help you identify the underlying cause and recommend safe, effective solutions.

Signs that you should seek help include:

• Difficulty falling asleep or staying asleep most nights of the week.
• Waking up feeling unrefreshed, even after a full night’s sleep.
• Excessive daytime sleepiness or fatigue that interferes with your daily activities.
• Frequent nighttime awakenings that leave you feeling anxious or stressed.
• Symptoms of sleep apnea, such as loud snoring, gasping for air during sleep, or pauses in breathing.

Sleep apnea is a particular concern during pregnancy, as it can increase the risk of complications like preeclampsia, gestational diabetes, and preterm birth. If you or your partner notice signs of sleep apnea, talk to your provider right away. They may recommend a sleep study or other tests to assess your breathing during sleep.

If you’re experiencing anxiety or depression that’s affecting your sleep, don’t hesitate to reach out for help. Pregnancy can be an emotionally challenging time, and it’s important to prioritize your mental health. Your provider can refer you to a therapist or counselor who specializes in prenatal mental health, or they may recommend safe, pregnancy-friendly medications if needed.

Remember, good sleep is essential for a healthy pregnancy. If you’re struggling, you’re not alone—and there are solutions that can help. Don’t be afraid to ask for support when you need it.

From our medical team: Side-sleeping—especially on the left—is the safest and most comfortable position for most people in the second trimester. Use pillows strategically, avoid long periods on your back, and listen to your body. If you experience persistent pain, severe heartburn, or unusual swelling, reach out to your prenatal care provider for personalized advice. Small adjustments, like a pillow between your knees or a wedge under your belly, can make a big difference in how you feel each morning. And remember, it’s normal to wake up a few times during the night—just roll onto your side and try to relax.

Myth vs. fact

Myth: You must sleep exclusively on your left side throughout pregnancy.

Fact: The left side is optimal, but the right side is also safe. The key is to avoid the supine position once the uterus grows. Your body will naturally adjust to what’s most comfortable for you and your baby.

Myth: A single pillow is enough for a comfortable night.

Fact: Most experts recommend two to three pillows—or a specialized pregnancy pillow—to support the belly, back, and knees for proper alignment. The right pillow setup can make side-sleeping far more comfortable and help you wake up feeling refreshed.

Myth: Sleeping on your back will harm the baby directly.

Fact: Short periods on your back are unlikely to cause harm, but prolonged supine sleep can reduce blood flow and cause maternal symptoms, so it’s best to limit it. If you wake up on your back, simply roll onto your side and try to fall back asleep.

Myth: You can’t do anything about pregnancy-related insomnia.

Fact: While some sleep disruptions are normal, there are many strategies you can try to improve your sleep, from adjusting your sleep environment to practicing relaxation techniques. If insomnia is affecting your daily life, talk to your provider—they can help you find solutions that work for you.

Key takeaways

• Aim for left-side sleeping to promote optimal blood flow and placental health, but the right side is also safe if it’s more comfortable for you.
• Avoid extended supine sleep after 20 weeks to prevent vena cava compression and reduce the risk of dizziness or low blood pressure.
• Use a pregnancy pillow or at least three pillows to support the belly, back, and knees for proper alignment and comfort.
• Consider a wedge pillow for heartburn relief and to keep the uterus slightly elevated, especially if you’re prone to acid reflux.
• Maintain a medium-firm mattress; add a topper if needed for extra comfort or support.
• If you wake with dizziness, severe heartburn, or leg cramps, adjust your position and consult your provider if symptoms persist.
• Create a sleep-friendly environment by keeping your bedroom cool, dark, and quiet, and establish a relaxing bedtime routine.
• If you’re struggling with persistent sleep problems, don’t hesitate to seek help from your provider—they can offer personalized advice and support.

Frequently asked questions

Can you sleep on your back during the second trimester?

Short, occasional periods on your back are generally safe, but you should avoid prolonged supine sleep after about 20 weeks because it can compress the vena cava and reduce blood flow to the baby. If you wake up on your back, simply roll onto your left side and try to fall back asleep. Most women naturally shift positions during the night, so brief periods on your back are unlikely to cause harm.

Why is the left side recommended for pregnant women?

The left side keeps the uterus off the inferior vena cava, improves cardiac output, and enhances oxygen delivery to the placenta, which supports fetal growth and reduces maternal swelling. It also helps prevent the uterus from compressing the liver and aorta, two structures