Support Guide
Sleeping on Your Stomach While Pregnant: What the Guidance Says
Tommy's says that in the early days of pregnancy it is fine to sleep on your stomach. Here is what Tommy's and Cleveland Clinic say about it — not everything on their pages.
Early on
Tommy's says your bump will probably not start showing until the second trimester, and that sleeping on your stomach is unlikely to be uncomfortable.
As your bump grows
Cleveland Clinic ob-gyn Salena Zanotti, MD, says that as your bump grows, chances are it won't be the most comfortable position, and that your body will let you know when it's time to give up sleeping on the stomach. Tommy's says that in the third trimester, you will have a large bump and it is very unlikely that you would choose this position.
If you wake up on your stomach
Tommy's says that if you do wake up on your stomach, don't worry, just roll onto your side.
The honest part
This is general information, not medical advice. For questions about pregnancy sleep positions, follow the guidance of a qualified healthcare professional.
Where to go from here
Can You Sleep on Your Back While Pregnant? What the Guidance Says covers what the sources say about back sleeping. Left Side or Right Side in Pregnancy? covers the sides.
Sources
Tommy's — Sleep position in pregnancy Q&A (last reviewed 11 June 2026).
Cleveland Clinic — "Is It Really All That Bad To Sleep on Your Back While Pregnant?", with Salena Zanotti, MD (23 September 2024).
Checked by Queen Rose on 6 October 2026.
FAQ
Q · Is it harmful to sleep on my stomach while pregnant?
Tommy's says that in the early days of pregnancy it is fine to sleep on your stomach. Tommy's also says that if you do wake up on your stomach, don't worry, just roll onto your side.
Q · When should I stop sleeping on my stomach?
Cleveland Clinic ob-gyn Salena Zanotti, MD, says your body will let you know when it's time to give up sleeping on the stomach. Your midwife or healthcare provider can talk through what's right for you.