Best pillows for back sleepers
Back sleepers need medium height, and the commonest error is a pillow that props the head forward rather than filling the hollow behind the neck.
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Lie on your back and there is a hollow at the back of your neck, between your head and your shoulders. The pillow's job is to fill it.
Too high and your head is pushed forward, the chin tucks toward the chest, and you spend eight hours in flexion. That is the commonest error in this position, because a generous-looking pillow feels supportive when you lie down and is wrong by morning.
Too low and the head drops back into extension, which strains the front of the neck.
So: medium height, and enough firmness to hold it. Back sleepers need less height than side sleepers and considerably more than front sleepers.
The picks
The pick, if you want one answer
Simba CustomFlex Pillow, 7.7 / 10. Adjustable height, which lets you set medium precisely rather than guessing at a fixed loft.
| Product | Best for | From | Score |
|---|---|---|---|
| Simba CustomFlex Pillow | Best overall | Mid range | 7.7 / 10 |
| Simba Hybrid Pillow | Best height retention | Mid range | 7.9 / 10 |
| Emma Pillow | Best conventional option | Mid range | 7.8 / 10 |
| Origin Coolmax Latex Pillow | Best consistency | Mid range | 7.8 / 10 |
Simba CustomFlex Pillow: Best overall
Mid range · 7.7 / 10
Removable fill, so you can take height out in small steps until the chin stops tucking. For back sleeping that is the right mechanism, because medium is a narrower target than it sounds and most fixed pillows are cut for side sleepers.
Buy it if
You want to set the height exactly rather than hope a fixed loft happens to suit you.
Do not buy it if
You already know your loft and want it held with no adjustment.
Read the full Simba CustomFlex Pillow review
Simba Hybrid Pillow: Best height retention
Mid range · 7.9 / 10
The highest scoring pillow on this site at 7.9. If a pillow is right at midnight and wrong at 4am, the problem is retention rather than height, and micro-springs hold height by pushing back rather than by being dense.
Buy it if
Your neck is fine at bedtime and sore by morning.
Do not buy it if
You want to sink into a pillow.
Read the full Simba Hybrid Pillow review
Emma Pillow: Best conventional option
Mid range · 7.8 / 10
Scores 7.8. Back sleeping is the position best served by a good ordinary pillow rather than a specialised one, because the height required sits close to where most pillows are made.
Buy it if
You want a straightforward well-made pillow at medium height.
Do not buy it if
You need to fine tune. Buy adjustable.
Read the full Emma Pillow review
Origin Coolmax Latex Pillow: Best consistency
Mid range · 7.8 / 10
Latex resists compression set far longer than polyurethane foam. Foam fails invisibly: a pillow that has lost two centimetres looks identical to a new one, and on a back sleeper that shift moves you from correct to too low without any visible change.
Buy it if
You have found your height and want it to stay the same for years.
Do not buy it if
You want to adjust it. Latex is a fixed profile.
Read the full Origin Coolmax Latex Pillow review
The test, and what the symptoms mean
Lie on your back for ten minutes so the pillow settles, then have someone look at you from the side. Your head should sit in line with your torso, not propped forward and not dropped back.
| What you notice | Usually means |
|---|---|
| Ache at the back of the neck or base of the skull | Too high. Chin tucked all night. |
| Ache at the front of the neck or jaw | Too low. Head dropped back. |
| You wake having pushed the pillow aside | Too high. You removed height in your sleep. |
| Snoring worse than usual | Possibly too low, though that is not the main cause. |
If you sleep on your back and your side
Most people move. If you start on your back and end on your side, the two positions want different heights, and the mattress decides how much that matters.
The practical answer is an adjustable pillow set slightly above pure back-sleeping height, because being a little too high on your back is more tolerable than being much too low on your side, where the shoulder ends up taking the weight.
A softer mattress narrows the gap between the two, because your shoulder sinks into it when you turn.
The free addition most back sleepers have not tried
A small pillow or a rolled towel under the knees lets the pelvis tilt slightly and takes tension off the lower back. It costs nothing if you own a spare pillow, and it helps a lot of back sleepers who assumed the mattress was the problem.
Worth trying for a week before spending on anything, alongside checking that your mattress has no dip over about 25 millimetres and that your slats are no more than about 7.5 centimetres apart.
What not to buy
A high-loft pillow. Most of the pillow market is cut for side sleepers, and that height puts a back sleeper into flexion all night.
Two pillows stacked. The most common cause of a tucked chin, and it is free to fix.
A plush pillow. It settles under head weight, so you are at the right height at midnight and too low by morning.
A contoured pillow chosen on the shape. A moulded curve only helps if its fixed height happens to match yours.
A new pillow before doing the fold test on your current one. Fold it in half and let go: if it stays folded, it has lost its structure.
Also considered, and why they are not here
A roundup is only as useful as what it leaves out, so here is what was assessed and rejected for this list.
| Product | Why it is not on the list |
|---|---|
| Simba Hybrid Firm | Built for side sleepers who need height held under a shoulder-sized gap. For back sleeping it is usually more height than you want. |
| Emma Cloud | Plush, which suits people who want to sink. For a back sleeper it settles overnight and leaves you lower than you set it. |
| Tempur Pillow | Excellent height consistency and the warmest fill in the category. Good once you know your loft, and the fixed profiles suit side sleepers more often. |
| Derila Ergo | Scores 5.1. A fixed contoured profile sold through urgency mechanics rather than on its specification. |
| Nanu Pillow | Scores 7.9 and genuinely good. It is here rather than in the picks because it is a strong all-rounder rather than a back-sleeping specialist. |
How this list is made, and who made it
Independence
No brand pays to appear on this site and no placement is sold. Some links earn a commission if you buy, which never changes a score, an order or a verdict. Several of the lowest scores here are on products that carry commission, and several recommendations carry none.
Who writes this. Kyle Klinkradt has worked in the mattress and bedding industry for over ten years across retail, distribution and brand partnerships, and has handled, sold or assessed products from every major UK bed-in-a-box brand. Every review on this site is written by one person, so the scores mean the same thing from page to page.
What the assessment is. Construction specifications against what they physically do: spring height and where in the mattress it sits, spring count for the size, gauge, whether the base is sprung or foam, foam density where it is published, comfort layer depth and material. Then the commercial terms that decide what you are actually buying: trial against returns policy, guarantee length against the company's UK trading history at Companies House, and the regulatory record.
What it is not. This is not a laboratory. I do not publish pressure-mapping data or claim to have slept eight years on every mattress here, because nobody has and pages that imply otherwise are not telling you the truth. Where a judgement rests on construction rather than long-term use, the review says so.
What gets a product removed. Leaving the UK market, a specification change that makes the review inaccurate, or a corrected fact. Brands that have withdrawn are kept on the site with the score removed rather than quietly deleted, because people still search for them.
See editorial independence, corrections and the author page.
How these were chosen
Every product here has its own review on this site with a score out of 10, and the score is a judgement rather than an average. Nothing appears in a list because it pays more.
A score is against the market, not against its own range. The cheapest mattress in a lineup is usually priced to make the model above it look reasonable, and the flagship of a budget range has risen into a bracket where better brands compete. Both are judged against what else you could buy for the money.
Everything listed can actually be bought in the UK. That is not a given: Casper withdrew in July 2020 and Leesa no longer sells here, and both still appear in current British roundups with affiliate links attached.
I do not pad the list. Where only three or four products genuinely qualify, there are three or four. A list of seven when the category contains four good ones is a list with three bad recommendations in it.
Prices move constantly. Judge the cash price on the day rather than any percentage beside it. See every review on this site or where the real savings are.
Questions people ask
What pillow height do back sleepers need?
Medium: enough to fill the hollow at the back of the neck without pushing the head forward. Back sleepers need less height than side sleepers and considerably more than front sleepers.
Why does my neck ache at the back when I wake up?
Usually a pillow that is too high, which tucks the chin toward the chest and holds the neck in flexion all night. Two pillows stacked is the most common version of this and free to fix.
What if I sleep on my back and my side?
Set an adjustable pillow slightly above pure back-sleeping height. Being a little too high on your back is more tolerable than being much too low on your side, where the shoulder takes the weight.
Does a pillow under the knees help back sleepers?
It lets the pelvis tilt slightly and takes tension off the lower back, and it is free to try with a spare pillow or a rolled towel. Worth a week before spending anything.