Back sleeping is the position most often recommended and most often done badly, and the pillow is usually why. The job is narrow: fill the hollow between the back of your head and the top of your shoulders so the neck keeps the gentle curve it has when you are standing. Too much pillow pushes the chin toward the chest. Too little lets the head tip back. Both show up the next morning as a stiff neck, and neither is the mattress's fault.
Here is how to get the fit right, and what to buy once you know what you are looking for.
The one measurement that matters: loft
Loft is the height of the pillow once your head is on it, not the height on the shelf. It is the single variable that decides whether a pillow works for you, and it is the one almost nobody checks.
Back sleepers need less loft than side sleepers and more than stomach sleepers. A side sleeper has to bridge the full width of a shoulder, which is a big gap. A back sleeper only has to fill the shallow curve behind the neck. As a working range, most back sleepers land somewhere around three to five inches of loft under load, with broader shoulders and firmer mattresses pushing toward the upper end.
Two things change that number more than people expect:
- Your mattress. A soft mattress lets your upper back sink in, which closes the gap your pillow has to fill, so you need a lower pillow. A firm mattress holds you on top, which opens the gap, so you need a higher one. Changing your bed can make a pillow you loved suddenly feel wrong. If you have recently switched, that is probably the explanation.
- Compression. A fluffy down pillow may stand four inches tall and compress to one and a half under the weight of a head. The number on the box is not the number that matters.
The five-second test
Lie flat on your back with the pillow in place and have someone look at you from the side. Your chin should sit roughly level with your forehead, and your gaze should point at the ceiling rather than at your feet or back over your head. If your chin is tucked down, the pillow is too high. If your throat feels stretched open, it is too low. You can also feel it yourself: swallow. If swallowing is awkward, your airway is kinked and the loft is wrong.
Fill types, and which suit back sleeping
Memory foam, solid block
A single piece of memory foam holds a consistent height all night and does not need fluffing, which is the main advantage for back sleepers. The height is fixed, so this only works if the loft happens to suit you. Solid foam also traps more heat than most alternatives, which is worth weighing in a warm Los Angeles bedroom.
Shredded memory foam or latex
Usually the best default for back sleepers, because many are adjustable: unzip the cover, remove or add fill until the height is right. That turns loft from a gamble into something you can dial in over a week. Shredded fill also breathes better than a solid block.
Latex
Responsive and springy rather than slow-sinking, naturally breathable, and very durable. It holds its height for years, which suits back sleepers who want one setting and no maintenance. It is heavier and usually costs more.
Down and down alternative
Soft and pleasant, but it compresses unpredictably under a head and flattens overnight, so the loft you fall asleep on is rarely the loft you wake up on. If you love the feel, look for a firmer, higher-fill-power option, and expect to fluff it. Our guide on when to replace a pillow applies most urgently here.
Cervical and contour pillows
These have a raised ridge under the neck and a dip for the head, which is a reasonable shape for back sleeping in principle. They work well for some people and are actively uncomfortable for others, and there is no way to know which you are without trying one. The practical problem is that they only work in one position, so if you turn onto your side during the night the shape fights you.
Firmness is not the same as loft
These get conflated constantly. Loft is how tall the pillow is. Firmness is how much it resists compressing. A back sleeper generally wants medium firmness: soft enough that the head settles in rather than perching on top, firm enough that it does not bottom out by 2am.
Very firm pillows are usually the wrong call for back sleeping. They hold the head higher than intended and push the chin forward. Very soft pillows collapse to nothing and leave the head tipped back. The middle is where this position lives.
Common mistakes
- Stacking two pillows. This is the most frequent cause of morning neck pain in back sleepers. Two standard pillows is almost always too much height. If you need more support, use one correctly sized pillow, not two of the wrong size.
- Letting the pillow slide under the shoulders. The pillow should start where your shoulders end, supporting the neck and head. Shoved under the upper back it tilts the whole torso and defeats the point.
- Ignoring the knees. A thin pillow under the knees takes tension off the lower back by letting the pelvis sit neutral. It is a small change that back sleepers with lumbar discomfort often notice immediately.
- Keeping a pillow too long. Fill compresses. A pillow that was the right loft two years ago may be an inch shorter now, and the change is gradual enough that you adapt to it without noticing.
If you do not stay on your back all night
Most people do not. If you start on your back and finish on your side, you need a pillow that works acceptably in both, which usually means a medium-loft adjustable pillow set slightly higher than a pure back sleeper would choose. A dedicated back-sleeping contour pillow is the wrong buy for a combination sleeper. Our guide for side sleepers covers the other half of that equation, and how to choose a pillow walks through the general decision.
What we carry
We stock pillows from Malouf and Sleep & Beyond across our five Los Angeles showrooms, including adjustable shredded-fill and latex options that let you tune loft rather than guess at it. That matters more for pillows than for almost any other bedding purchase, because the correct height is personal and not something a product description can tell you.
One thing worth knowing: if your pillow problem started when you got a new mattress, the pillow may not be the problem. A change in how far you sink changes the loft you need. Our guide to the best mattress for back sleepers covers how much support the bed itself should be giving you, and an adjustable base changes the equation again by raising the head.
Frequently asked questions
What is the best pillow for back sleepers?
A medium-firm pillow with medium loft, roughly three to five inches once compressed, that fills the curve behind the neck without pushing the head forward. An adjustable shredded memory foam or latex pillow is the safest buy, because you can tune the height to your shoulders and your mattress instead of hoping the factory guessed right.
How thick should a pillow be for back sleepers?
Around three to five inches under load for most adults. Broader shoulders and firmer mattresses need the higher end, narrower frames and softer mattresses the lower end. Judge it by whether your chin sits level with your forehead, not by the number on the packaging.
Are firm pillows good for back sleepers?
Medium firmness is usually better than firm. A very firm pillow holds the head too high and tips the chin toward the chest, which strains the neck. Firm pillows suit side sleepers, who need a pillow that resists collapsing under the weight of a shoulder gap.
Are contour pillows good for back sleepers?
They can be, since the raised neck ridge matches what back sleeping needs. But the fit is personal and the shape only works in one position, so they are a poor choice if you move during the night. Try one before committing, and give it at least a week before judging it.
Is sleeping without a pillow good for back sleepers?
Rarely. Without a pillow the head drops back and the neck loses its natural curve. The exception is someone on a very soft mattress whose upper back sinks far enough to close the gap on its own. If sleeping flat feels better than your current pillow, that is a sign your pillow is too high, not that you need none.
What is the best pillow for side and back sleepers?
An adjustable pillow set to a medium to medium-high loft. It will be slightly taller than ideal for pure back sleeping and slightly shorter than ideal for pure side sleeping, which is the correct compromise for someone who does both.
Are down pillows good for back sleepers?
They can feel wonderful, but down compresses overnight and loses the loft you chose it for. If you want down, choose a firmer, denser fill and expect to fluff it daily. If you want consistency without maintenance, latex or shredded foam is the more reliable pick.
How often should I replace my pillow?
Most pillows need replacing every one to three years, sooner for down and polyester fill, later for latex and solid foam. The test is simple: if it stays folded when you bend it in half, the fill has lost its structure.
Come find your loft
Pillow height is the kind of thing you can settle in five minutes lying down and never settle reading about it. Come try a few at any of our five Los Angeles showrooms, ideally on a mattress with a similar firmness to the one you sleep on, since the two work as a pair. Take our two-minute sleep quiz if you want a starting point, or browse pressure-relief mattresses if the neck pain turns out to be coming from the bed rather than the pillow. If it is specifically pain you are chasing, start with our guide to the best pillow for neck pain.
