Sleeping without a pillow can help posture, especially for stomach sleepers, by keeping the spine more neutral and reducing neck strain from an elevated head. However, for back and side sleepers, it often worsens posture by causing the neck to bend unnaturally backward or misaligned with the spine, leading to pain and stiffness. The key is neutral spinal alignment, so use a thin pillow or none for stomach sleeping, but a supportive pillow for back/side sleeping to fill the gap between neck and shoulder.
Depending on your sleeping position, additional pillows can help keep your spine in the correct position. The pillow for your head should support the natural curve of your neck and be comfortable. A pillow that's too high can put your neck into a position that causes muscle strain on your back, neck, and shoulders.
Forgoing a pillow can help a stomach sleeper's head, neck, shoulders, and upper back remain in a more neutral position. Sleeping without a pillow is unlikely to improve the posture of those who favor other sleep positions.
The 2-2-1 pillow rule is a popular interior design formula for arranging five pillows on a sofa or bed, creating a balanced, layered look: two large pillows (often squares/euros) anchor each end, two slightly smaller pillows nestle inside them, and one unique, smaller statement or lumbar pillow goes in the center as the focal point, adding texture and color. This method provides symmetry and visual interest by using graduating sizes and contrasting textures, making furniture look polished and inviting.
You'll also want to avoid placing your pillow too low. You don't want it underneath your shoulders because this can also lead to pain.
Spiegel says that people who sleep with two pillows are at risk of having a dowager hump on their backs. A dowager's hump is a slightly rounded hunch that forms at the base of the neck. It's caused by a chronic forward-leaning posture, which is becoming a bigger problem due to computers and smartphones.
The AAP generally recommends no pillows under 2 years of age. This age guideline is based on factors such as the reduced risk of Sudden Infant Death Syndrome (SIDS) and the development of motor skills that allow toddlers to maintain open airways while sleeping.
The unhealthiest sleeping position is generally considered to be sleeping on your stomach (prone position), as it forces your neck to twist and flattens the natural curve of your spine, leading to neck, back, and shoulder pain, numbness, and poor sleep quality. An overly curled fetal position is also harmful, causing joint stiffness and restricted breathing, while sleeping on your back can worsen snoring and sleep apnea for some individuals.
Sleeping without a pillow may help some people who sleep on their stomachs, but it's not a good idea for everyone. Side or back sleepers often find that sleeping without a pillow puts pressure on their neck and back. This can reduce the quality of sleep and lead to back pain and neck strain while sleeping.
Sleeping on your side
If you sleep on your side, draw your legs up slightly toward your chest and put a pillow between your legs. Flexing your knees and having a pillow between your legs can help align your spine, pelvis and hips. This position takes pressure off your spine. Use a full-length body pillow if you prefer.
The 3-2-1 sleep rule is a simple wind-down routine: stop eating and drinking alcohol 3 hours before bed, stop working/mentally stimulating activities 2 hours before, and turn off screens (phones, TVs) 1 hour before sleep, helping you transition to rest by reducing stimulants and preparing your mind and body. It's often part of a larger 10-3-2-1-0 rule, which also adds no caffeine 10 hours prior and no hitting snooze (0) in the morning.
The unhealthiest sleeping position is generally considered to be sleeping on your stomach (prone position), as it forces your neck to twist and flattens the natural curve of your spine, leading to neck, back, and shoulder pain, numbness, and poor sleep quality. An overly curled fetal position is also harmful, causing joint stiffness and restricted breathing, while sleeping on your back can worsen snoring and sleep apnea for some individuals.
It is generally recommended that you use only one pillow to support your head and neck in a neutral position. Using too many pillows can result in unnatural positioning of your spine, which can lead to discomfort and pain.
The healthiest sleeping position often depends on individual needs, but side sleeping (especially the left side) is generally favored for reducing back/neck pain, aiding digestion (acid reflux), improving circulation, and helping with sleep apnea by keeping airways open, while back sleeping is great for spinal alignment but can worsen snoring and reflux. Stomach sleeping is usually discouraged due to neck and back strain.
Spiegel says that people who sleep with two pillows are at risk of having a dowager hump on their backs. A dowager's hump is a slightly rounded hunch that forms at the base of the neck. It's caused by a chronic forward-leaning posture, which is becoming a bigger problem due to computers and smartphones.
Pillows lose their shape and accumulate germs over time, so it's important to replace them every one to two years. Signs that it's time for a new pillow include neck pain, sneezing, changes in sleep position, odor, discoloration, lumpiness, and lack of resilience.
How to Improve Your Posture While You Sleep
The rarest major sleeping position is often cited as the Starfish (on your back with arms up), with only about 5-7% of people sleeping that way, but stomach sleeping (prone position) is also very uncommon, with less than 10% of adults preferring it, making it a strong contender for rarest, though sometimes considered a major type, not just a variation. More niche or minor variations, like specific fetal or "T-Rex arms" (bent wrists), might be rarer still, but data focuses on broad categories.
Knee pain as the ligaments around the knees and hips become inflamed due to the constant flexion occurring at those joints. Inflammation and pain in the lower back owing to the back's curvature when in this position, which leads to the back muscles being stretched and becoming tight. Spinal deformities.
On average, Japanese sleep about 7 hours and 20 minutes a night, - the least among 33 OECD member countries. And the number of insomniacs is growing. But even as more people suffer from insomnia, help can be hard to find.
The koala is famous for sleeping around 20-22 hours a day, which is about 90% of the day, due to their low-energy diet of eucalyptus leaves that requires extensive digestion. Other extremely sleepy animals include the sloth (up to 20 hours) and the brown bat (around 20 hours), with some snakes like the ball python also sleeping up to 23 hours daily.
Signs of poor core sleep (deep, restorative sleep) include waking up foggy, daytime fatigue/energy crashes, poor concentration, irritability, frequent illness, memory issues, and mood swings, indicating your brain and body aren't fully repairing and consolidating memories. You might also experience increased sugar cravings, slow muscle recovery, and a weakened immune system.
By practicing good sitting posture, regularly stretching, and doing core-strengthening exercises, you should see results in anything from a few months to half a year. Posture correction is an ongoing process and everyone responds to it at their own pace.
Getting rid of a neck hump by ditching your pillow sounds simple but it's not the pillow alone that causes it and going pillow free isn't the fix for most people. That small hump at the base of the neck is often a mix of posture, muscle imbalance, and spinal alignment, not just how you sleep.