If you're one of the 40% of Australians who don't get enough sleep 1Source: RACGP, your sleeping position could be part of the problem. Sleeping in a bad position can also make daytime pain worse, which can lead to reduced productivity and workplace injuries. The good news? With the right information, you can easily break this cycle.
With decades of experience helping our patients improve their sleep quality, we've compiled the most effective sleep position advice based on both scientific research and practical outcomes observed in our chiropractic clinics.
Time to put bad sleep posture to bed! Here's what you need to know.
How Your Sleep Position Affects Your Body
While you sleep, your body repairs itself and builds energy for the next day. But the position you stay in for 6-8 hours each night can either help or harm this recovery process.
Different sleep positions have real effects on your spine health. A major 2025 study 2Source: PubMed found that sleeping on your side or back significantly reduces lower back pain compared to stomach sleeping, which can increase pain by putting strain on your spine and other soft tissue structures.
Your spine naturally forms an S-shape when viewed from the side. Keeping this alignment during sleep lets your muscles relax while supporting your spine properly. When this alignment is off – like when your neck twists while sleeping on your stomach – your muscles have to switch on and work all night, preventing proper recovery.
Research shows that people with neck pain spend more time in bad sleep positions and change positions more often during the night. This confirms what many people with chronic pain already know – poor positioning creates a cycle of pain and disrupted sleep.
The 3 Main Sleep Positions: Pros & Cons
Side Sleeping: Best for Most People
Side sleeping is the best position according to research, which explains why most people with back pain prefer it. When properly supported, side sleeping keeps your spine aligned naturally while offering many health benefits.
This position helps prevent snoring and can improve mild sleep apnoea by keeping your airway open. For people with acid reflux, sleeping on your left side is especially helpful, as gravity keeps stomach acid in place.
The key to good side sleeping is proper support. Your pillow should keep your head neutral – imagine a straight line from your ear through your shoulder to your hip. Your pillow should fill the space between your ear and shoulder without pushing your head up or down.
Just as important is putting a pillow between your knees and ankles. This simple addition keeps your hips in a neutral position, reduces pressure on your hip joints, and can greatly reduce lower back pain. Many people find this one change makes sleep much more comfortable within just a few nights.
Back Sleeping: A Good Alternative
Back sleeping provides excellent spine support when done right, spreading your weight evenly across your body. This position naturally maintains your spine's curves and can help certain types of back pain.
Getting back sleeping right requires attention to detail. Your pillow height is crucial – too thick pushes your head forward and strains your neck; too thin doesn't support your neck's natural curve. A useful tip is to roll a small towel and place it inside your pillowcase at the bottom to support your neck.
The most helpful trick for back sleepers is putting a pillow under your knees. This relaxes tight hip muscles and allows your lower back to settle into a better position, reducing the arch that can cause pain. Some people also benefit from a thin pillow under their lower back for extra support.
Keep in mind that back sleeping can make snoring and sleep apnoea worse for some people, as gravity can cause your tongue and soft tissues to block your airway. If you have these issues, side sleeping is usually better.
Stomach Sleeping: Try to Avoid
Stomach sleeping consistently ranks as the worst position in research, with many back pain sufferers avoiding it because it makes pain worse. This position forces your neck to turn while over-arching your lower back.
The stress on your body is significant – muscles have to work constantly in this position, preventing the recovery sleep should provide. If you've ever woken up with a stiff neck after sleeping on your stomach, this constant muscle tension is why.
If you find it hard to stop stomach sleeping right away, put a pillow under your chest to reduce neck twisting and use a very thin pillow (or none) under your head for better alignment. However, we strongly suggest working toward side or back sleeping for long-term spine health.
Best Positions for Common Health Conditions
For Back Pain
Side sleeping with a pillow between your knees is best, maintaining spine alignment while reducing lower back pressure. Back sleeping with knee support is a good alternative. Both are much better than stomach sleeping for managing back pain.
For Neck Pain
Avoid sleeping on your stomach. Whether you sleep on your side or back, keeping your head in a neutral position where your ear aligns with your shoulder is crucial for reducing neck strain.
For Sleep Apnoea
Side sleeping offers major benefits for breathing problems during sleep. This simple position change can significantly improve breathing for many people with position-related sleep apnoea.
For Acid Reflux
Sleeping on your left side provides measurable benefits, reducing acid exposure compared to right-side sleeping. This position uses gravity to help keep stomach acid where it belongs.
For Sciatica
The foetal position often provides the most relief for sciatica sufferers, by opening space between vertebrae and reducing nerve pressure. Side sleeping on your non-painful side can also reduce pressure on irritated nerves.
For Pregnancy
Avoid back sleeping during pregnancy after 28 weeks due to blood flow concerns. Side sleeping with a pillow between your knees and another supporting your belly provides the best comfort and safety for both mum and baby.
How to Change Your Sleep Position
Week 1: Assessment and Preparation
Start by evaluating your current sleep setup. Notice which positions you naturally use and when you feel the most discomfort.
Gather what you'll need – this might mean buying an appropriate pillow or simply reusing existing ones for knee or lower back support.
Weeks 2 to 4: Active Implementation
Begin your transition by focusing on the position you start sleep in rather than trying to control movement all night. Your body will naturally move during sleep, which is completely normal.
At first, you might wake up in your old position – simply readjust and continue with your new approach.
Managing the Adjustment Period
The first week typically involves some discomfort as your body adjusts. This is normal and doesn't mean the position is wrong for you.
Most people notice gradual improvement during the second week, with the new position beginning to feel natural by week 3.
When to Seek Professional Care
Proper sleep positioning is a powerful tool for improving your health, but works best when part of comprehensive care. Everyone's body, conditions, and comfort needs are different, which is why personalised assessment ensures the most effective approach for your specific needs.
If you have ongoing pain, sleep problems, or find it difficult to implement position changes successfully, professional guidance can make the difference between frustration and success.
Our team of experienced chiropractors can assess your specific spine alignment needs, recommend position modifications, and integrate sleep positioning with other treatments.
Conclusion
Quality sleep isn't a luxury, it's essential for your health, productivity, and happiness. By understanding and using evidence-based sleep positioning, you're taking a significant step toward pain-free, restful nights that your body needs to support active, fulfilling days.
Your journey toward better sleep and less pain can begin tonight with simple position changes. However, lasting improvement often benefits from professional support and comprehensive care that addresses your unique situation.
If you need assistance with improving your sleep quality, we would love to help. Book an appointment today.
