# The best sleeping position: side, back or stomach, and who each one suits

There’s no single perfect way to lie in bed, but there is a best way for your back, your breathing and your stomach. Here’s how side, back and stomach sleeping compare, and how to set up your pillows for each.

Source: https://nourishandstrong.com/best-sleeping-position
Published: 2026-11-08
Updated: 2026-11-08
By: the Nourish & Strong team
General information, not medical advice.

**The short answer:** for most people, the best sleeping position is on your side or your back, with pillows that keep your head, shoulders and hips in line. Side sleeping suits snoring, sleep apnea, pregnancy and acid reflux (left side). Back sleeping puts the least pressure on your spine. Stomach sleeping is the hardest on your neck and lower back.

Cleveland Clinic’s sleep specialists put it simply: if you’re comfortable, you wake up refreshed and you aren’t snoring all night, there’s probably no reason to change. If something hurts or your breathing is the problem, your position is one of the easiest things to adjust.

## What is the best sleeping position?

The best sleeping position is the one that keeps your spine in a neutral line and suits your health. Here’s how the three main positions compare, based on Cleveland Clinic, the NHS, the NIH and published reflux trials:

| Position | Pros | Cons | May suit |
| --- | --- | --- | --- |
| Side | Helps keep the airway open; the NHS advises it for snoring and sleep apnea | Easy to twist your torso or curl up too tight; can load one shoulder | Snoring, sleep apnea, pregnancy, acid reflux (left side), one blocked nostril |
| Back | Least pressure on the spine, Cleveland Clinic says; often most comfortable with neck or back pain | The tongue can fall back and narrow the airway | Back pain, neck pain |
| Stomach | Some people find it the easiest way to drop off | Holds the neck twisted for hours; linked with back, neck and shoulder pain | Few people; best avoided with pain or seizures |
| Propped up | Gravity helps keep stomach acid down | Pillows under your head alone can bend your neck forward | Night-time reflux, congestion from a cold or allergies |

If your pain is the main issue, our guides to [sleeping with lower back pain](https://nourishandstrong.com/how-to-sleep-with-lower-back-pain) and [neck pain from sleeping wrong](https://nourishandstrong.com/neck-pain-from-sleeping-wrong) go deeper.

## Is sleeping on your stomach bad?

Sleeping on your stomach is the position most experts like least, because it holds your neck turned to one side for hours and puts pressure on your lower back. Cleveland Clinic lists back, neck and shoulder pain as common results. One of its spine specialists says that when people come in with pain they know is related to sleep, stomach sleeping is usually the cause. Tucking an arm under the pillow adds strain to the shoulder too.

If it’s the only way you can drop off and nothing hurts, it’s likely fine. Cleveland Clinic adds one firm exception: people prone to seizures, or anyone at risk of passing out in their sleep, such as after heavy drinking, should avoid lying face down, because the pillow can block the airway.

## Is sleeping on your back good?

Sleeping on your back is good for your spine, and Cleveland Clinic says it’s often the most comfortable position for people with neck or back pain. Keep both arms in the same position, rather than one overhead and one on your belly, so one side doesn’t take more strain.

The catch is breathing. On your back, your tongue can drop backward and narrow your airway. That’s why the NHS lists sleeping on your back as a cause of snoring and as one of the things linked to sleep apnea. Back sleeping also isn’t advised later in pregnancy, which we cover below.

## Is it better to sleep on your left or right side?

For most people either side is fine, and Cleveland Clinic says it’s mostly a matter of comfort. The side matters in three situations:

- **Acid reflux.** The left side looks better. A 2023 review of reflux studies found less acid in the food pipe when people slept on their left side than on their right or on their back.
- **Pregnancy.** The NHS says either side is safe to fall asleep on. Cleveland Clinic notes the left side may help blood flow in theory, but most providers say either side is fine.
- **A blocked nostril.** Lie on the side of the nostril that’s breathing better, so the stuffy one is on top.

Switching sides now and then also helps, Cleveland Clinic says, because sleeping on one side every night can cause imbalances over time.

## What sleeping position is best for sleep apnea?

Sleeping on your side is the best position for sleep apnea and snoring. The NIH’s heart, lung and blood institute says your provider may suggest side sleeping because it can help keep your airway open. Cleveland Clinic says sleep labs often see apnea that is significant on the back ease, or even go away, when the person turns onto their side.

Position is one part of treatment for sleep apnea, and it doesn’t replace a breathing machine or mouth device if you’ve been prescribed one. The NHS also suggests not smoking and not drinking too much alcohol, especially close to bedtime.

## What sleeping position is best for acid reflux?

The best sleeping position for acid reflux is on your left side with your head and upper body raised. The NIH’s digestive disease institute suggests a foam wedge or extra pillows under your head and upper back to raise your head 6 to 8 inches. Stacking pillows under your head alone can bend your neck, so a wedge that lifts your whole upper body works better.

In a 2022 trial of 100 people with night-time reflux, a small wearable that buzzed whenever they rolled onto their right side kept them on their left. Their symptoms improved by half or more in 44% of cases, compared with 24% in the comparison group.

## What pillow setup is best for each sleeping position?

The right pillow setup keeps your head level with your spine and stops your hips from twisting. These tips come from Cleveland Clinic’s spine and sleep specialists:

| Position | Head pillow | Extra pillow |
| --- | --- | --- |
| Side | Thick enough that your head doesn’t droop toward the mattress | One between your knees so your top leg doesn’t pull forward and twist your back |
| Back | Your jaw shouldn’t point at the ceiling (too low) or at your chest (too high) | A small one under your knees to ease the arch in your lower back |
| Stomach | Very thin, or none | A body pillow to hug can give the same pressure while you lie on your side |
| Propped up (reflux) | Your usual pillow | A foam wedge raising your upper body 6 to 8 inches |

On your side, stretch out a little. Cleveland Clinic suggests keeping your thighs roughly in line with your body and avoiding a tight fetal curl. If you sleep on a memory foam topper or pillow-top mattress, your shoulder sinks in more, so you’ll need a thinner pillow. Hip pain at night needs its own setup, and our guide to [hip pain at night](https://nourishandstrong.com/hip-pain-at-night) covers it.

## How do you train yourself to sleep on your side?

The simplest way to train yourself to sleep on your side is to make rolling onto your back uncomfortable. The NHS suggests taping or stitching a tennis ball to the back of your sleepwear, or using a special pillow or bed wedge to hold you on your side. A body pillow in front of you and a firm pillow behind your back does a similar job. Give any change a few nights before you judge it, and stop anything that causes pain.

## What is the best sleeping position when pregnant?

The best sleeping position when pregnant is on your side, especially after 28 weeks. The NHS says research suggests going to sleep on your back after 28 weeks may raise the risk of stillbirth, possibly because of the effect on blood and oxygen flow to the baby. Left or right side are both fine. If you wake up on your back, don’t worry; just turn onto your side before going back to sleep.

## When won’t changing position help?

Changing position won’t fix a problem that needs treatment. See a doctor if:

- Someone notices your breathing stop and start, or you gasp, snort or choke in your sleep
- You feel very tired during the day, or wake with headaches, despite a full night in bed
- Your snoring keeps going after you’ve tried side sleeping and cutting back on alcohol
- Heartburn wakes you often, or doesn’t settle with over-the-counter remedies
- Back, neck or hip pain keeps you awake whatever position you try

The NHS says untreated sleep apnea can lead to high blood pressure, stroke, type 2 diabetes and heart disease, so it’s worth getting checked. Caffeine late in the day can also keep you up however you lie, and our guide to [how long caffeine lasts](https://nourishandstrong.com/how-long-does-caffeine-last) shows when to stop. If you’re tired no matter what you change, read [why you might always be tired](https://nourishandstrong.com/why-am-i-always-tired).

## Your next step

Pick the position from the table that matches your main problem and set up the pillows for it tonight. Give it a week before you decide. If hot flashes or night sweats are what wake you, our guide to [menopause and sleep](https://nourishandstrong.com/menopause-and-sleep) may help more than a new pillow.

## Quick questions

### Is sleeping on your right side bad?

Sleeping on your right side isn’t bad for most people, and Cleveland Clinic says either side is usually fine. The exception is acid reflux. A 2023 review found more acid in the food pipe on the right side than on the left, so if heartburn wakes you, try the left side with your upper body raised.

### Is it bad to sleep on your back while pregnant?

Going to sleep on your back after 28 weeks of pregnancy isn’t advised. The NHS says research suggests it may raise the risk of stillbirth, possibly by affecting blood and oxygen flow to the baby. Fall asleep on either side instead. If you wake on your back, simply turn onto your side.

### What is the best sleeping position for lower back pain?

The best sleeping positions for lower back pain are on your back with a small pillow under your knees, or on your side with a pillow between your knees. Cleveland Clinic says back sleeping puts the least pressure on the spine. Try to avoid sleeping on your stomach, which can strain your lower back.

### What is the best sleeping position for neck pain?

The best sleeping position for neck pain is on your back or side with your head level with your body. On your back, your jaw shouldn’t point at the ceiling or your chest. On your side, the pillow should fill the gap so your head doesn’t droop. Cleveland Clinic advises against stomach sleeping.

### Does sleeping on your side stop snoring?

Sleeping on your side can reduce snoring for many people, and the NHS recommends it. Lying on your back lets the tongue and soft tissues fall back and vibrate. A tennis ball sewn to the back of your sleepwear can keep you off your back. See a doctor if snoring comes with gasping or daytime sleepiness.

### Is sleeping propped up good for you?

Sleeping propped up can help with night-time acid reflux and with congestion from a cold or allergies, Cleveland Clinic says. The NIH suggests raising your head 6 to 8 inches with a foam wedge or pillows under your head and upper back. A wedge that lifts your whole upper body is kinder to your neck.

This article is general information, not medical advice. If you snore loudly, stop breathing in your sleep or have pain that keeps you awake, please talk to your doctor.

## Sources

- [Cleveland Clinic. The best sleeping positions for a restful night](https://health.clevelandclinic.org/best-sleeping-position)
- [Cleveland Clinic. Best sleeping positions for back, neck and shoulder pain](https://health.clevelandclinic.org/best-sleeping-positions-for-pain)
- [Cleveland Clinic. Is your pillow hurting your neck?](https://health.clevelandclinic.org/is-your-pillow-hurting-your-neck-7-tips-for-better-sleep)
- [NHS. Snoring](https://www.nhs.uk/conditions/snoring/)
- [NHS. Sleep apnoea](https://www.nhs.uk/conditions/sleep-apnoea/)
- [National Heart, Lung, and Blood Institute (NIH). Sleep apnea treatment](https://www.nhlbi.nih.gov/health/sleep-apnea/treatment)
- [NIDDK (NIH). Treatment for GER and GERD](https://www.niddk.nih.gov/health-information/digestive-diseases/acid-reflux-ger-gerd-adults/treatment)
- [NHS. Reducing the risk of stillbirth](https://www.nhs.uk/pregnancy/keeping-well/reducing-the-risk-of-stillbirth/)
- [Schuitenmaker JM et al. Sleep positional therapy for nocturnal gastroesophageal reflux: a randomized, sham-controlled trial. Clin Gastroenterol Hepatol, 2022](https://pubmed.ncbi.nlm.nih.gov/35301135/)
- [Simadibrata DM et al. Left lateral decubitus sleeping position and GERD symptoms: a systematic review and meta-analysis. World J Clin Cases, 2023](https://pubmed.ncbi.nlm.nih.gov/37969463/)