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Updated September 2026
Sleeping on your stomach is not dangerous for most healthy adults, but it is the position hardest on your neck and lower back. Your head stays turned to one side all night, and your hips can sink and arch your spine. If stomach sleeping is the only way you can fall asleep, use a very thin pillow, tuck a flat pillow under your hips and choose a medium-firm, supportive mattress.
Most of us shift positions several times a night, and it can take a few minutes of tossing and turning to find the right spot. But not every position treats your body the same way. Stomach sleepers, we are looking at you. Here is what sleeping on your stomach really does to your body, who should avoid it and how to make it more comfortable if you cannot give it up.
Key takeaways
- Stomach sleeping is the least common position. Adults spend about 7% of their time in bed on their stomach.
- It can strain your neck, which stays twisted to one side, and your lower back, which arches as your hips sink.
- It may reduce snoring compared with sleeping on your back.
- Stomach sleepers do best with a thin pillow, a pillow under the hips and a medium-firm mattress.
- Side sleeping is usually easier on the spine, and you can train yourself to switch.
How common is stomach sleeping?
Stomach sleeping, also called prone sleeping, is the least common sleep position. In a study that tracked adults' positions with body sensors through the night, here is how participants' sleep positions broke down:
on their side
on their back
on their stomach
The same study found people shift positions more than once an hour on average, so even committed stomach sleepers spend part of the night in other positions.
Why does sleep position matter?
Sleep is when your body recovers from the strain of the day. The position you sleep in can help or hinder that process. The healthiest position keeps your spine in a neutral line from your hips to your head. A position that bends or twists the spine for hours can leave you with a stiff neck, sore back or aching shoulders in the morning.
Is sleeping on your stomach bad?
It is not harmful for everyone, but it comes with more trade-offs than other positions.
Potential benefits
- May reduce snoring compared with back sleeping, because gravity is less likely to pull the tongue and soft tissue back into the airway
- Feels secure and comfortable for some people, which can help them fall asleep faster
Potential drawbacks
- Your head is turned to one side for hours, which can strain your neck
- Your hips and belly can sink into the mattress, arching your lower back
- Pressure on the chest, jaw and shoulders can leave you sore
- Can cause numbness or tingling if your arms are tucked under you or your pillow
Stomach vs side vs back sleeping
| Stomach | Side | Back | |
|---|---|---|---|
| Spinal alignment | Hardest to keep neutral | Good with the right pillow | Good with the right pillow |
| Neck strain | Highest, head turned all night | Low | Low |
| Snoring | Often less | Often less | Often worse |
| Best pillow | Very thin or none | Thick, firm | Medium |
| Best mattress feel | Medium-firm to firm | Soft to medium | Medium to medium-firm |
Who should avoid sleeping on their stomach?
- People with neck or back pain. The twisting and arching can make pain worse.
- Pregnant people. Stomach sleeping becomes uncomfortable and impractical as pregnancy progresses. Side sleeping is usually recommended.
- Babies. Infants should always be placed on their backs to sleep, following safe sleep guidelines.
How to sleep on your stomach with less strain
If stomach sleeping is the only way you can drift off, these changes can reduce the pressure on your neck and back.
- Use a very thin pillow, or none at allA high pillow tilts your head back and adds to neck strain. An adjustable pillow like the Harmony Classic, which comes in three thicknesses, lets you keep your head low.
- Put a flat pillow under your hipsA thin pillow under your pelvis keeps your hips from sinking and reduces the arch in your lower back.
- Choose a supportive, medium-firm mattressA mattress that is too soft lets your midsection sag. You want enough support to keep your hips level with your shoulders.
- Keep your arms by your sidesTucking your arms under your pillow or body can cause numbness and shoulder strain.
- Stretch in the morningA few minutes of gentle neck and back stretches can ease stiffness from the night.
The best mattress for stomach sleepers keeps your hips from sinking while still relieving pressure on your chest and shoulders. The ChiroPro Tri-Zoned Hybrid, developed with the International Chiropractors Association, uses zoned support to help keep your spine aligned. The Midnight Hybrid pairs pressure-relieving foam with pocketed coils for responsive support.
How to switch from stomach to side sleeping
Changing a lifelong sleep habit takes patience, but these tricks help:
- Hug a body pillow. It gives you the same cozy, "held" feeling many stomach sleepers love, while keeping you on your side.
- Place a pillow behind your back. It makes rolling onto your stomach harder during the night.
- Try a half-stomach position first. Lying partly on your side with one knee bent is a comfortable middle ground.
- Choose a side-sleeper pillow. A contoured pillow like the Serenity Contour fills the gap between your head and shoulder. See our pillow guide for more help.
Does your sleep position reveal your personality?
Just for fun: in 2003, sleep expert Chris Idzikowski surveyed about 1,000 British adults and linked common sleep positions with personality traits. The fetal position was the most common and was associated with sensitivity. The "freefall" position, lying on your stomach with your arms wrapped around your pillow, was linked with being outgoing and sociable but sensitive to criticism.
Keep in mind this was a survey, not a controlled scientific study, and there is no proven link between sleep position and personality. What your position does affect is how your neck and back feel in the morning.
Frequently asked questions
Is sleeping on your stomach bad for your back?
It can be. When your hips sink into the mattress, your lower back arches, which may cause stiffness or pain. A flat pillow under your hips and a medium-firm mattress help keep your spine straighter.
Can sleeping on your stomach cause neck pain?
Yes. Because you have to turn your head to one side to breathe, your neck stays rotated for hours. Using a very thin pillow, or none, reduces the strain.
What is the best pillow for stomach sleepers?
A soft, thin pillow, or an adjustable pillow with some fill removed. The flatter the pillow, the less your neck has to bend.
What mattress firmness is best for stomach sleepers?
Most stomach sleepers do best on a medium-firm to firm mattress that keeps the hips from sinking below the shoulders.
Does sleeping on your stomach help with snoring?
It may. Snoring often gets worse on your back, so stomach or side sleeping can reduce it. If you snore loudly or stop breathing during sleep, talk with a doctor about sleep apnea.
Is it okay to sleep on your stomach while pregnant?
Early in pregnancy it is generally fine if comfortable, but it becomes impractical as the belly grows. Side sleeping is usually recommended. Ask your healthcare provider what is best for you.
Find support for the way you sleep
Every MLILY sleep product is endorsed by the International Chiropractors Association for proper spinal alignment and whole-body support. Try one in person at more than 1,500 retail locations nationwide.
Sources: Skarpsno ES et al., "Sleep positions and nocturnal body movements based on free-living accelerometer recordings," Nature and Science of Sleep, 2017; BBC News, sleep position and personality survey by Chris Idzikowski, 2003. This article is general information and is not medical advice. If you have ongoing neck or back pain, talk with a doctor or chiropractor.
