How to Train Yourself to Sleep on Your Back
Disclaimer: This article is for general informational purposes only and is not intended as medical advice. Back sleeping is not appropriate for everyone, including those with sleep apnoea, certain cardiac conditions, or in later pregnancy. Speak to your GP or a qualified healthcare professional before significantly changing your sleep position if you have any underlying health concerns.
Back sleeping is simultaneously the position most sleep specialists recommend, and the position least practised. According to a recent YouGov survey, only around 7% of Brits sleep primarily on their back. This is despite the broad consensus that supine sleep offers the best biomechanical outcomes for the spine, the fewest pressure points, and the cleanest position for cervical alignment.
If you're trying to switch, you've probably discovered that good intentions don't survive contact with the unconscious. You lie flat, fall asleep, and wake up curled on your side. Changing sleep position is genuinely difficult, but it's not impossible, and we’ve found that the technique is mostly environmental rather than psychological.
Why Should I Switch to Back Sleeping?
The case for back sleeping is well-supported. A 2025 systematic review published in Musculoskeletal Care studying the relationship between sleep posture and low back pain found that the supine position was consistently associated with lower prevalence of lumbar discomfort compared with prone sleeping, particularly when supportive pillows were used to maintain spinal neutrality.
Back sleeping distributes body weight evenly across the mattress, eliminates pressure on the shoulders and hips, prevents facial creasing (a minor cosmetic point but a real one nonetheless), and can reduce acid reflux symptoms when the head is slightly elevated. It's also the position most likely to deliver consistent spinal alignment night after night, since you can't accidentally curl into a problematic shape the way side and stomach sleepers can.
What Does the Research Say?
Beyond the spinal benefits, supine sleep also tends to produce fewer waking spinal symptoms than other positions when the setup is correct. The qualifier matters: back sleeping without proper neck support is no better than other positions and can actually end up being worse.
It’s also worth noting that despite its benefits, the position isn't right for everyone: people with sleep apnoea or significant snoring usually do worse on their back, since the supine position allows the tongue and soft palate to obstruct the airway more easily. Pregnant women after the second trimester are usually advised against back sleeping for circulatory reasons. For anyone in either category, the goal isn't supine; it's optimised side sleeping.
The Pillow Setup That Makes It Work
The most common reason people fail at back sleeping isn't psychological resistance, it's more to do with discomfort caused by a bad pillow setup. The standard error is using the same pillow you used as a side sleeper, which is far too high for back sleeping.
A back sleeper needs a lower-loft pillow that supports the natural cervical curve without pushing the head forward into the chest. A pillow that's too high causes morning neck stiffness; a pillow that's too low leaves the head tilted back uncomfortably. The right loft maintains the same alignment you'd have when standing with good posture.
A second pillow under the knees does more than it looks like it should. Elevating the knees flattens the lumbar curve slightly, which relaxes the lower-back muscles and reduces the strain that some people experience when first transitioning to supine sleep. For people with lower back issues, this single change often makes back sleeping comfortable for the first time.
For Back Sleepers, The Mattress Matters Most
Back sleeping requires a mattress that supports the lumbar region without pushing the hips up. Too firm a mattress creates a gap under the lower back; too soft and the whole spine sags into a U-shape.
Medium-firm hybrid mattresses tend to suit back sleepers particularly well. The combination of responsive pocket springs and foam comfort layers provides the consistent support across the body's length that back sleeping needs. A mattress that's appropriate for back sleeping will leave you waking up without pressure-point pain and without lower back stiffness.
We engineered the Simba Hybrid® range to support a full range of body types and sleep positions, with Aerocoil® Springs providing responsive support and engineered foam layers offering pressure relief. Alongside our bed bases built for long-term support, our product range was constructed around body data from over 10 million sleepers - all with the goal of addressing the differences in how various positions distribute weight.
How to Physically Train Yourself
The most reliable technique is environmental. Pillows on either side of the body discourage rolling; some people use a body pillow on each side, others use rolled towels. The point is to create physical barriers that make rolling slightly more effortful, which is enough to keep most people supine through the night.
A wedge pillow under the upper back can also help, particularly if you have any tendency to snore. The slight elevation makes side sleeping feel less natural and reinforces the supine position.
The transition is usually unpleasant for the first one to three weeks. Most people sleep poorly during this period and revert to their previous position multiple times a night. The unconscious mind is resistant to change. Persistence is the only reliable variable.
How Long Does It Take to Switch Sleeping Position?
Most people who successfully switch report that it takes between four and eight weeks for supine to feel natural enough that they stay there without active effort. Some people never fully transition and end up alternating between back and side, which is generally fine if the side position is well-supported.
The pillow barriers can usually be removed after a month or so. The mattress and pillow setup that supports back sleeping should remain in place permanently.
When Back Sleeping Isn't Right
If you snore loudly when you sleep on your back, or if a partner reports gasping or breathing pauses, get assessed for sleep apnoea before continuing to train yourself into the supine position. Sleep apnoea is significantly more dangerous than awkward side sleeping, and it's worth investigating rather than working around.
And as mentioned above, pregnant women in the second and third trimester should sleep on the left side, not the back, for circulation reasons.
Final Thoughts
Back sleeping is a skill rather than a preference, at least if you're switching from another position. The setup does most of the work: a lower pillow, a pillow under the knees, physical barriers on either side, and a mattress that supports the spine evenly. Get those right and the unconscious mind eventually catches up.
FAQs
The unconscious gravitates to learned positions. Physical barriers and consistent practice are the only reliable way to override this.
Almost never. The neck still needs support; the pillow just needs to be lower than what a side sleeper would use.
Yes, often. If snoring is significant, supine sleep usually isn't the right goal.
Only if the head is elevated with a wedge pillow or adjustable base. Flat back sleeping can worsen reflux.
Yes. Side and stomach sleeping press the face against the pillow for hours, contributing to compression-related lines over time.
Disclaimer: This article is for general informational purposes only and is not intended as medical advice. Back sleeping is not appropriate for everyone, including those with sleep apnoea, certain cardiac conditions, or in later pregnancy. Speak to your GP or a qualified healthcare professional before significantly changing your sleep position if you have any underlying health concerns.
