Ashwin Lewis
Sleeping on your back while pregnant has been a topic of debate for years. While some studies have shown that it increases the risk of stillbirth, others have found no association between back sleeping and stillbirth. However, it is generally recommended that pregnant women sleep on their sides, as this promotes optimal blood flow for both the mother and the baby. Sleeping on the left side in particular is thought to improve blood flow to the heart, uterus, and kidneys. To make side sleeping more comfortable, pillows can be used for support.
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What You'll Learn
Sleeping on your side is best for blood flow and baby's oxygen
Sleeping on your side during pregnancy is recommended by many physicians, especially once you are more than halfway through your pregnancy. This is because sleeping on your side places the least pressure on your veins and internal organs, ensuring optimal blood flow to the uterus. This means your baby will receive maximum nutrients and oxygen.
Research has shown that in the third trimester (after 28 weeks of pregnancy), sleeping on your back increases your risk of stillbirth. Six separate research trials have found a link between back sleeping and stillbirth. When sleeping or lying on your back, the baby and womb put pressure on the main blood vessels that supply the uterus, which can restrict blood flow and oxygen to the baby and placenta. Other studies have shown that when a woman lies on her back in late pregnancy, the baby is less active and has changes in heart-rate patterns, likely due to lower oxygen levels in the baby.
Therefore, sleeping on your side is the best position for blood flow and your baby's oxygen levels. If you find it difficult to get used to sleeping on your side, you can try using pillows to prop your upper body at a 45-degree angle or elevate the head of your bed slightly. You can also use pillows under your belly, between your legs, and behind your back for support.
While the left side is recommended by many experts, sleeping on your right side is also considered acceptable. The most important thing is to avoid lying flat on your back, especially during the third trimester, to ensure optimal blood flow and oxygen for your baby.
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Lying flat on your back is linked to an increased risk of stillbirth
Sleeping on your side is widely regarded as the best position for pregnant women, especially once they are more than halfway through their pregnancy. This is because sleeping on your side places the least pressure on your veins and internal organs, ensuring the best blood flow to the uterus, which means your baby will get maximum nutrients and oxygen. Sleeping on your side can also help prevent circulation problems such as varicose veins, haemorrhoids, and swelling, as well as muscle aches and pains.
While sleeping on your back is generally considered safe during the first trimester, it is best to choose another position as your pregnancy progresses. This is because as your uterus gets heavier, it can put pressure on your aorta and inferior vena cava, which could interfere with the flow of blood and nutrients to the placenta and developing baby. This can lead to decreased blood flow for the mother as well, resulting in dizziness, shortness of breath, or a fast heart rate.
Research has shown that sleeping on your back during the third trimester (after 28 weeks of pregnancy) increases the risk of stillbirth. Six case-control research studies have found a link between back sleeping and stillbirth, with one study showing a potential increased risk of stillbirth for those who slept the entire night on their back. However, it is important to note that this study was small and should not be taken as definite proof. Additionally, a 2019 study of about 800 women for up to 30 weeks of pregnancy found no association between those who reported sleeping on their back and stillbirth.
While the evidence on the link between back sleeping and stillbirth is mixed, it is generally recommended that pregnant women avoid sleeping flat on their back, especially during the third trimester. If you find it difficult to sleep on your side, you can try using pillows to prop your upper body at a 45-degree angle or elevating the head of your bed slightly.
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Sleeping on your back can cause health issues for the mother
Sleeping on your back during pregnancy is not recommended, especially after 20 weeks into the pregnancy. This is because the weight of the baby and womb can put pressure on other organs in the body, including the blood vessels that supply the uterus. Sleeping on your back can restrict blood flow and oxygen to the baby and placenta, and may also decrease blood flow for the mother. This can cause dizziness, shortness of breath, or a fast heart rate in the mother.
Back sleeping can also contribute to circulation problems such as varicose veins, hemorrhoids, and swelling, as well as muscle aches and pains. Additionally, sleeping on your back can cause snoring, which can lead to sleep apnea as weight is gained during pregnancy.
Sleeping on your side is generally recommended as the best position for pregnant women, as it places the least pressure on veins and internal organs, ensuring optimal blood flow to the uterus and baby. Side sleeping can also help reduce potential swelling, varicose veins, and hemorrhoids for the mother.
Pregnant women who typically sleep on their backs are advised to transition to side sleeping early in their pregnancy, before sleeping becomes uncomfortable. Using pillows for support can help make this transition more comfortable.
While sleeping on your back during pregnancy is not ideal, it is important to note that the risk of any serious adverse effects on the baby's health is relatively low.
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Stomach sleeping is fine until 16-18 weeks
Sleeping on your stomach is usually fine until you reach 16 to 18 weeks of pregnancy. After this point, your growing bump may make this position less comfortable. However, apart from comfort, there isn't much to worry about if you find yourself on your stomach.
Sleeping on your side is generally recommended as the best position for you and your baby during pregnancy. It places the least pressure on your veins and internal organs, ensuring optimal blood flow to the uterus and maximum nutrient and oxygen supply to the baby. Side sleeping can also help reduce potential swelling, varicose veins, and haemorrhoids.
While the left side is often recommended as the best side to sleep on, the right side is also perfectly acceptable. Many experts advise pregnant women to avoid lying flat on their backs, especially after 28 weeks of pregnancy, as this can increase the risk of stillbirth. However, this advice is based on limited research, and some studies have found no association between back sleeping and stillbirth.
Pregnancy pillows can provide extra support and comfort when sleeping on your side. You can try using a wedge pillow under your belly and behind your back or a full-body pregnancy pillow. Propping yourself up with pillows or sleeping in a recliner can also help if you find it difficult to sleep on your side.
Overall, while stomach sleeping is generally safe until 16 to 18 weeks of pregnancy, transitioning to sleeping on your side is recommended for optimal comfort and to ensure the best blood flow to your baby.
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Pillows can help you sleep on your side
Sleeping on your side is the best position for you and your baby during pregnancy, especially once you're more than halfway through your pregnancy. Sleeping on your back increases the risk of stillbirth, as the combined weight of the baby and womb puts pressure on other organs in your body. This pressure restricts blood flow and oxygen to the baby and placenta, and can cause circulation problems for the mother.
Pregnancy pillows can help you sleep on your side. They come in a variety of shapes and sizes, all designed to support you in different ways. If you're struggling to get comfortable during sleep, it may be a good time to start using a pregnancy pillow. A common way to position yourself with a U-shaped pillow is to wrap the pillow around you, resting your head on it, with the pillow supporting both your bump and your back. Tuck the pillow between your knees to keep your back in alignment. If you have a J- or C-shaped pillow, focus on the area in which you most need support, running it down your front and supporting your bump or down your back with the curve of the pillow between your knees.
If you prefer a more “on your back” position for sleep, you can consider placing a small pillow or maternity wedge pillow under one hip. This is enough to avoid the potential risks of back sleeping late in pregnancy. Wedge pillows are the smallest types, roughly the size of a regular pillow, but shaped like a round or triangular wedge to provide additional support. Total body pillows are the largest kind and are designed to support every part of your body at once. They come in U- or C-shapes, depending on whether you want to be fully surrounded by the pillow, or only covered on one side.
If you simply can’t get used to sleeping on your side, try using pillows to prop your upper body at a 45-degree angle. This way, you’re not flat on your back and you take the compression off your IVC.
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Frequently asked questions
Sleeping flat on your back during pregnancy is generally discouraged, especially after 28 weeks of pregnancy. This is because the combined weight of the baby and womb can put pressure on other organs, potentially interfering with the flow of blood and nutrients to the placenta and developing baby. However, some studies suggest that sleeping on your back during pregnancy does not increase the risk of complications.
Sleeping on either side is generally recommended as it helps ensure optimal blood flow to the uterus, providing maximum nutrients and oxygen to the baby. It also reduces the risk of circulation problems such as varicose veins, hemorrhoids, and swelling.
Using pillows for support can help make sleeping on your side more comfortable. Pregnancy pillows or wedge pillows can be placed under the belly, between the legs, and behind the back. Elevating the head of the bed slightly can also help.
Stomach sleeping is generally safe until weeks 16 to 18, after which the growing bump may make this position uncomfortable. While it may not be harmful, it is recommended to transition to sleeping on the side as the pregnancy progresses.
In addition to finding a comfortable sleeping position, there are other strategies to improve sleep quality during pregnancy. Reducing caffeine intake, establishing a soothing bedtime routine, and practicing relaxation techniques such as yoga, stretching, and deep breathing can help promote better sleep. Staying well-hydrated during the day and having a light snack before bedtime can also be beneficial.
