Is It Safe To Sleep On Your Back When Pregnant?

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Finding the right position to sleep comfortably during pregnancy is a struggle for most pregnant women. Although sleeping on your back during pregnancy may be tempting, it is generally not a widely accepted medical recommendation. As relaxing and comfortable it may be, this position is typically safe only during the first trimester. Towards the later trimesters, it may cause complications for the baby and yourself (1) (2).

Read to know more about sleeping on the back while pregnant, including its side effects and tips to sleep comfortably.

In This Article

Why Is Sleeping On The Back Not Recommended During Pregnancy?

Sleeping on the back during pregnancy may cause dizziness

Image: IStock

Sleeping on your back, especially in later stages, is not recommended during pregnancy for the following reasons:

  • The weight of the growing uterus and fetus presses on the inferior vena cava (the large vein that carries deoxygenated blood from the lower body to the heart). It may, therefore, slow down the return of blood to the heart and limit blood flow to the fetus (2) (3).
  • The pressure created on the major blood vessels may cause dizziness, lightheadedness, back pain, digestion problems, difficulty in breathing, hemorrhoidsiXA condition in which the rectal and anal region veins get swollen. , and low blood pressure (2).
  • According to a study published in JAMA Network Open, a supine sleep positioniXSleeping on the back with the face facing upwards. in late pregnancy (third trimester) could lead to low birth weight of the infant. In an analysis of 1,760 pregnant women, 57 women who slept on their backs had babies with reduced birth weight (4).

protip_icon Did you know?
EpidemiologicaliX A population study of the distribution, causes, and events of health-related conditions. data demonstrate that about one in three women in early pregnancy and one in five women in late pregnancy sleep on their backs. Overall, almost 27% of expectant women spend at least some time sleeping on their backs during the night (12).

Does Sleeping On Your Back Increase The Risk Of Stillbirth?

The Journal of Obstetrics and Gynecology reports that there is no risk of stillbirth (1).

Several older studies have found that sleeping on the back in the third trimester was associated with an increased risk of stillbirth (5). In fact, a study by researchers in New Zealand has also hypothesized that a supine sleeping position was associated with increased late stillbirthiXThe death or loss of a baby before or during birth. risk (6).

However, these studies were not randomized and included a small sample population. Therefore, they cannot be taken as direct evidence.

What Happens If You Wake Up On Your Back?

Don't worry about waking up on the back since it may happen unknowingly during sleep

Image: Shutterstock

You need not worry much about waking up on the back since it could happen unknowingly during sleep. In some cases, your body might help you know, as you would start feeling breathless or nauseated even before your baby is affected. It is not likely to cause harm to your baby (7).

How Long Can You Sleep On Your Back While Pregnant?

You may sleep on your back as long as you feel comfortable. As your uterus expands, sleeping on the back may cause discomfort, and you may naturally shift to a more comfortable sleeping position (5).

protip_icon Quick tip
Expecting women should avoid sleeping on their backs from the 28th week of gestationiXThe period from the time of conception to delivery, typically lasting around nine months. until birth. Putting one pillow under the shoulder and one under the buttock can help sleep in a tilted position which ensures there’s no pressure on the inferior vena cava (13).

What Is The Correct Maternal Sleeping Position?

Image: IStock

Sleeping on your left side is considered a good position as it enhances the blood flow to the baby, your uterus, and the kidneys. Using pillows, one between your knees and the other beneath the abdomen, could make you sleep comfortably. It could create a tilt while sleeping on the side and provide the needed support

How To Sleep Comfortably During Pregnancy?

Here are a few tips to get a comfortable and better sleep when pregnant (9).

  • Drink more water (or fluids) during the day, and less before sleep time to avoid frequent urination.
  • Relaxation techniques such as yoga, breathing exercises, and meditation could relieve your stress and mitigate snoring, sleep apnea, insomnia, or any other sleep disturbances (10).

    Relaxation techniques could relieve stress and promote good sleep

    Image: IStock

  • Use full-body pregnancy pillows and supportive cushions for extra support. They could make you feel comfortable and improve sleep.
  • Do not eat spicy or fried foods as it could lead to heartburn and disrupt your good night’s sleep.
  • To prevent nausea, you may have some snacks such as crackers or pretzels. This could also curb your midnight hunger.
  • Listen to some relaxing and soothing music before bedtime. It could de-stress you and help sleep better.
protip_icon Did you know?
Research shows that music helps improve sleep quality in pregnant women (14). Another research shows that prenatal music and singing interventions can help improve the mood and well-being of pregnant women and support mother-infant bonding (15).
  • Take a warm shower a few minutes before bedtime. It calms the tensed nerves and improves sleep.

     A warm shower before bedtime calms you and improves sleep

    Image: IStock

  • Ask your partner to give you a massage.

Frequently Asked Questions

1. How to avoid sleeping on my back during pregnancy?

You may place pillows behind your back to stop you from sleeping on your back. Although they may not completely prevent you from sleeping on your back, they make you feel comfortable (10).

2. Can sleeping on my back during pregnancy cause brain damage in the baby?

Sleeping on your back has not been found responsible for any brain damage, developmental disorders, or other conditions such as autism in your baby (11).

3. Can sleeping on my back during pregnancy lead to pelvic pain?

Sleeping on your back during pregnancy may cause pelvic pain as it may increase pressure on your pelvis and spine, leading to discomfort and pain.

4. Can sleeping on my back cause acid reflux during pregnancy?

Sleeping on your back during pregnancy may cause acid reflux. Stomach acid can move freely to the esophagus and lead to reflux symptoms. To prevent this, prop your head and shoulders up when you sleep to prevent stomach acid from coming up (16).

Sleeping on your back while pregnant is safe in the first trimester. However, as your pregnancy progresses, sleeping on your back is not advisable since it can reduce the oxygenated blood supply to the fetus. It can also cause many issues for the mother, such as back pain, lightheadedness, dizziness, and low blood pressure. Thus, mothers are advised to sleep on their left side since it enhances blood circulation to the uterus and the baby. Hence, practice sleeping on your side from the start of the pregnancy to get used to this sleeping position.

Infographic: Sleeping Safe And Well During Pregnancy

Knowing ways to cope with sleep issues and following proper sleep positions could help you get the much-needed rest when pregnant. Here is an infographic to help you choose the correct sleep position and learn some helpful tips to sleep well during pregnancy.

more tips for a better sleep when pregnant (infographic)

Illustration: Momjunction Design Team

Get high-quality PDF version by clicking below.

Download Infographic in PDF version Download Infographic
Download Infographic in PDF version

Key Takeaways

  • Sleeping on the back during pregnancy after the first trimester is not recommended for safety concerns.
  • This position may put pressure on the blood vessels and cause reduced blood supply to the fetus, dizziness, difficulty breathing, and low blood pressure.
  • It is recommended to sleep on the left side with the support of pillows to improve blood supply to the fetus.
  • To achieve peaceful sleep during pregnancy, staying hydrated, taking warm showers, practicing yoga, and meditation can be helpful.

Is your habitual back sleeping starting to get uncomfortable for you? Check out this video for tips on how to sleep comfortably during pregnancy.


MomJunction's articles are written after analyzing the research works of expert authors and institutions. Our references consist of resources established by authorities in their respective fields. You can learn more about the authenticity of the information we present in our editorial policy.
1. The advice we give to pregnant women; The Journal of Obstetrics and Gynecology (2019)
2. The Best Position for Sleep During Pregnancy; National Sleep Foundation;
3. Jane Warland; Back to basics: avoiding the supine position in pregnancy; The Journal of Physiology (2017).
4. Ngaire H. Anderson, et al.; Association of Supine Going-to-Sleep Position in Late Pregnancy With Reduced Birth Weight A Secondary Analysis of an Individual Participant Data Meta-analysis; JAMA Network Open (2019).
5. Peter R. Stone, et al.; Effect of maternal position on fetal behavioural state and heart rate variability in healthy late gestation pregnancy; The Journal of Physiology (2017).
6. Tomasina Stacey, Ed A Mitchell, and Jane M Zuccollo; Association between maternal sleep practices and risk of late stillbirth: a case-control study; The BMJ (2011).
7. Should pregnant women avoid sleeping on their backs; The Ohio State University Wexner Medical Center
8. Sleeping Positions During Pregnancy; University of Rochester Medical Center
9. Sleeping During Pregnancy; Brenner Children’s – Wake Forest Baptist Health
10. Vivek Kumar, Vibhor Malhotra and Satish Kumar; Application of Standardised Yoga Protocols as the Basis of Physiotherapy Recommendation in Treatment of Sleep Apneas: Moving Beyond Pranayamas; PubMed Central (2018).
11. Sleep position in pregnancy Q&A; Tommy’s
12. Exactly How Bad Is It to Sleep on Your Back When You’re Pregnant?; Cleveland Clinic
13. Nicole Robertson, Satomi Okano, and Sailesh Kumar; Sleep in the Supine Position During Pregnancy is Associated with Fetal Cerebral Redistribution; NCBI (2020)
14. Sleeping positions; The Women’s Center
15. Yasemin Sanlı et al.; Effects of music on sleep quality and comfort levels of pregnant women; NCBI (2021)
16. Verena Wulff et al.; The effects of a music and singing intervention during pregnancy on maternal well-being and mother–infant bonding: a randomised, controlled study; NCBI (2021)
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