A practical guide to choosing a pillow: how sleep position sets your loft, what each fill material actually does, and how to tell when a pillow is wrong for you.
Most people buy a mattress carefully and buy a pillow by accident. That is backwards. Your pillow is the one piece of bedding sitting directly under your head and neck for eight hours a night, and it has more day-to-day influence on morning neck stiffness than almost anything else in the bedroom. The good news: choosing well is not complicated once you know which three variables actually matter.
Those three are loft (how tall the pillow sits under your head), fill (what is inside it), and firmness (how much it resists compression). Get those right for how you sleep and the rest is preference.
Loft is the single most important variable, and it is decided almost entirely by your sleep position. The goal is simple: when you are lying in your normal sleep position, your head, neck and spine should form a straight line. Your nose should point straight ahead, not tipped up toward the ceiling or tucked down toward your chest.
When you lie on your side, there is a gap between your ear and the mattress roughly as wide as your shoulder. A pillow has to fill that gap. Most side sleepers do well with a high-loft pillow in the 5 to 7 inch range, and broader-shouldered sleepers usually need more. If your pillow is too thin, your head drops toward the mattress and your neck bends all night.
On your back, the gap to fill is much smaller — just the natural curve of your cervical spine. Medium loft, roughly 3 to 5 inches, is the usual sweet spot. Many back sleepers also do well with a contoured or cervical-shaped pillow that supports the neck curve while letting the back of the head settle lower.
Stomach sleeping already rotates your neck sideways. Adding height on top of that compounds the strain. If you sleep on your stomach, go as thin as you can tolerate — 2 to 3 inches, or a soft, easily flattened fill. Some stomach sleepers genuinely do best with no pillow under the head at all, and a thin one under the hips instead.
If you move between positions all night, a medium-loft pillow with an adaptable fill — shredded foam, down, or down alternative — lets you push it around and reshape it as you turn. Avoid rigid contoured pillows here; they only work in one position.
Memory foam (solid block). Contours closely and holds its shape all night. Excellent support and pressure relief; the tradeoff is that it traps heat and cannot be reshaped. Best for side and back sleepers who stay put.
Shredded memory foam. The same material chopped up, which lets air move through it and lets you add or remove fill to tune the loft. A strong all-around choice, especially for combination sleepers and anyone who runs warm.
Latex. Responsive and springy rather than slow-sinking, naturally breathable, and it holds loft for years without flattening. It is one of the more durable options and a good pick for hot sleepers. It is also heavier and pricier than foam.
Down and feather. Soft, light, and easy to reshape, with a luxurious feel. Down compresses a lot under weight, so it usually reads lower-loft than it looks. It needs regular fluffing and is not the best structural support for side sleepers with wide shoulders.
Down alternative (polyester). The budget-friendly, hypoallergenic version of down. It feels similar out of the package but flattens faster, so plan on replacing it more often.
Buckwheat. Firm, adjustable, and extremely breathable, with a distinctive rustling feel that people either love or return within a week.
Two people can buy the same pillow and get different results, because a heavier head compresses fill further. If you are on the heavier side, size up in firmness to keep the same effective loft. If you are lighter, a plush pillow will hold more height for you than the label suggests. This is why testing a pillow in your actual sleep position matters more than reading a firmness rating.
In a showroom, do not press it with your hand. Lie down on a mattress with a similar feel to your own and stay there for a couple of minutes in the position you actually sleep in. Then have someone look at you from the side, or check in a mirror. If your chin is tipping toward your chest, the pillow is too tall. If your head is sagging and your neck is bent downward, it is too short.
Mattress firmness changes the answer, too. A plush mattress lets your shoulder sink in, which shrinks the gap your pillow needs to fill — so you may need less loft than you would on a firm bed. If you are shopping for both at once, test them together. Our five Los Angeles showrooms are set up for exactly this, and you are welcome to take your time.
Any of those means the loft or the support is off. Folding a pillow in half is the clearest tell of all — you are manually building the loft the pillow should have provided.
Standard (20 x 26 inches) suits most sleepers and fits two across a queen bed. Queen pillows (20 x 30) give restless sleepers a bit more room to move. King pillows (20 x 36) fit two across a king bed and work well as a backrest for reading. Size is about coverage and bed proportion — it does not change the support you get, so choose loft first and size second.
Prioritize neutral alignment above all else: the right loft for your sleep position, and a fill firm enough to hold that loft through the night rather than collapsing by 3 a.m. Memory foam, latex, and contoured cervical pillows all tend to perform well because they resist compression. Our guide to the best pillow for neck pain covers the specifics. Persistent neck pain is worth raising with a doctor or physical therapist — a pillow can support good alignment, but it cannot treat an underlying problem.
Measure the gap. Lie on your side and look at the distance from the outside of your shoulder to the side of your head — that is roughly the loft you need, usually 5 to 7 inches. Firmer fills hold it better under the weight of your head. See our full breakdown of the best pillows for side sleepers.
For most people, no. Side and back sleepers need a pillow to keep the spine neutral, and going without leaves the neck bent all night. The one group that sometimes benefits is dedicated stomach sleepers, whose necks are already rotated — for them, no pillow or a very thin one can reduce strain.
Most pillows are done between one and three years, depending on the fill. Polyester and down alternative wear out fastest; latex and quality memory foam last longest. The fold test is the quickest check: fold the pillow in half and let go. If it does not spring back on its own, it has lost its support. We go deeper in our guide on how often to replace your pillow.
Two to four times a year for washable fills, with a pillow protector under the case in between. Solid memory foam and latex generally cannot go in a machine — spot clean and air them out instead. See our step-by-step guide to washing pillows by fill type.
If you are between options, the fastest route is to figure out your sleep profile first — position, firmness preference, and how warm you sleep — and let that drive both the pillow and the bed under it. Take our sleep quiz for a personalized starting point, or stop by any of our five LA showrooms and lie down on a few. And if the pillow is only half the problem, our memory foam mattresses and mattress toppers are worth a look while you are here — every mattress comes with our free 120-night comfort guarantee and same-day delivery across Los Angeles.
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