Posted by Iris Calder
The Sleep Sanctuary
In this article
A side sleeper pillow should stand 4 to 6 inches tall, and be firm enough to keep most of that height.
Royal Goose Down Pillow
That range is loft, the height on the label, as Wirecutter gives it for side sleepers. Choosing the right pillow starts there. Where you land inside it depends on two things: how broad your shoulders are, and how far your mattress lets them sink. A stack of folded towels finds your number tonight: the height a pillow has to hold under your head. Then the fill decides whether a pillow keeps that height all night. Firm down can. Soft down cannot.
If you have a cupboard of pillows that never felt right, you were not being fussy. Nobody gave you the number.
- 4 to 6 inon the label, the usual range
- Firmour Royal feel made for side sleepers
- 60 nightsto try any of our pillows at home
- $369Royal Goose Down Pillow, Queen
What pillow height do side sleepers need?
Enough to fill the gap between your ear and the mattress, so your head neither drops nor tips up. The guides agree on the ballpark. Wirecutter says 4 to 6 inches of loft. Mattress Nerd says roughly 4 inches. Sleep Doctor says many side sleepers prefer 5 inches or more.
Those are label heights, measured with nothing on the pillow. Under your head every pillow sits a little lower, which is what the towel stack and the next section deal with. A range is also a starting line, not an answer: two people can both be "side sleepers" and need quite different pillows. Here is what moves you up or down.
What moves you inside 4 to 6 inches of loft
| Your body or bed | Moves you | Why |
|---|---|---|
| Broad shoulders | Toward 6 in | More distance from the mattress to your ear |
| Narrow shoulders | Toward 4 in | Less distance to fill |
| Firm mattress | Up | Your shoulder stays on top |
| Soft mattress or a topper | Down | Your shoulder sinks in and the gap shrinks |
| Side and back in one night | One step down | A side height feels tall when you roll onto your back |
Shoulders and mattress are the two inputs the Spine Health Foundation names too, along with plain comfort. They work against each other, which is why a friend's perfect pillow can feel wrong on your bed.
How do I find my own height?
Build a pillow out of laundry and adjust it until your head is level. It takes a few minutes, costs nothing, and measures your shoulders and your mattress at the same time, which no label can.
- Make the stack. Fold three or four bath towels to about pillow size and pile them where your pillow goes. Set your pillow aside.
- Lie down the way you fall asleep. On your side, knees a little bent, with the edge of the stack pulled down to touch the top of your shoulder.
- Check the line. Ask someone to look at you from in front, or prop your phone on a chair facing you and take a timer photo.
- Add or take away. Head tipping toward the mattress: add a fold. Tipping up: take one off. A hand towel does the fine tuning.
- Measure. With your head on the stack and level, have your helper hold a tape measure upright beside it. Alone, get up, press the stack down with a flat hand about as hard as your head did, and measure from the mattress to the top.
That number is the height a pillow has to hold under your head. Write it down. When you shop, look for a loft at your number or a little above it, in a fill firm enough to give way only a little.
How do you know "level"? Look at two points: the tip of your nose and the dip at the base of your throat. On a pillow that fits, they sit on one straight line across the photo.
Why does my pillow go flat by morning?
Because the height on the label is measured with nothing on it. Put your head down and the fill gives way. A soft fill gives way a lot. A firm fill holds more of its height, so what you measured in the shop is closer to what you sleep on at 3 in the morning.
That is why the guides keep pointing side sleepers at firmer pillows. Sleep Doctor says medium to firm, so the pillow keeps its shape under pressure. The Spine Health Foundation's experts say medium firm. Mattress Nerd says the firmer side.
A fix many side sleepers reach for is the worst one: two soft pillows stacked. Two soft pillows squash like one tall soft pillow, and they slide against each other as you turn. One pillow at your height beats two at a guess.
Does my mattress change the pillow I need?
Yes. A soft mattress can make a perfect pillow feel too tall. On a soft mattress or a thick topper your lower shoulder sinks in, so your head starts closer to the bed and the gap under it gets smaller. The pillow that suited a firm guest bed can feel wrong at home.
So measure on the bed you actually sleep on. New mattress, new topper, or moving in with someone whose bed is softer: make the towel stack again. It takes a few minutes and can save you a pillow.
Where should the pillow sit?
Lower than you think. Pull it down until its edge meets the top of your shoulder, so it fills the space under your neck as well as your head. Then let your head rest square to your shoulders, chin neither tucked toward your chest nor lifted.
"The pillow is not necessarily for your head."
He shows it lying on his back, and the same idea holds on your side: the pillow fills the space between your shoulder and your ear. Several commenters under that video found their "wrong" pillow was a fine pillow in the wrong spot. Before you buy anything, try your current pillow pulled down to your shoulder for a night.
What fill is best for side sleepers?
The one that holds your number with your head on it. How firmly a pillow is filled matters more than what it is filled with. Three of Wirecutter's four side sleeper picks are shredded foam, and the fourth is a firm down alternative. Mattress Nerd says down can suit side sleepers when the fill is very dense. Many shredded foam pillows let you take fill out, which helps if your number is low. Pick the material you like lying on, then pick it firm.
Is a down pillow good for side sleepers?
Yes, if it is firm. Down is not the problem for side sleepers; soft down is. Sleepopolis put just one down pillow on its 2020 side sleeper list, because it finds most down runs soft for side sleeping, and a soft, low down pillow earns that. A firm one is a different pillow.
Our Royal Goose Down Pillow comes in Soft, Medium and Firm, and Firm is the one we made for you: "Firm: the fullest lift, to fill the space between your shoulder and ear. For side sleepers."
It holds 100% Canadian Hutterite white goose down at 900+ fill power and 97% down cluster, with no feathers and never duck, tested by IDFL on our production lot. The shell is 100% cotton batiste at 400 thread count, uncoated and downproof, with a piped edge. Made in Canada. Queen $369, King $419.
One thing to know about fill power: it measures how much room an ounce of down takes up, not how firm a pillow feels. The feel you pick, Soft, Medium or Firm, is what decides how much of your height it holds.
Want premium down at a gentler price? The Cloud Pillow holds the same 800+ fill power down that fills our Heaven and Air duvets, 100% Canadian, in a smooth 300 thread count cotton sateen shell with a clean knife edge. It comes in Soft or Medium, and Medium is the side sleeper choice: "fuller, with more lift. For back and side sleepers." There is no Firm Cloud Pillow. Full $199.99, Queen $209.99, King $219.99.
A detail that saves a wrong order: our Sleep Sets ship two Medium pillows. The Cloud Heaven Sleep Set has two Medium Cloud Pillows and the Royal Goose Down Sleep Set has two Medium Royal Goose Down Pillows. If you sleep on your side and want Firm, add the Royal Goose Down Pillow in Firm on its own.
When should you buy something else?
When your number says so. We would rather you sleep well on someone else's pillow than badly on ours.
- Your towel number is under 4 inches. You need a low pillow that is still firm. We do not make one. Our Cloud Pillow in Soft is lower, but it is not firm, so we would not sell it to you as a side pillow.
- You want to tune the height yourself. Look for a pillow with removable fill. Ours come filled, in the feel you choose, so look elsewhere for that.
- You want a cut out for your shoulder. Some people swear by the shape. The Spine Health Foundation quotes Dr. Thomas Schuler saying there is not much research behind it. Either way, the height under your head matters more than the outline, and the photo check works on any shape.
- Your budget is under $199.99. That is where our pillows start. Take your towel number shopping and buy the firmest pillow you can find that holds it.
How do you choose the right pillow?
How to choose a pillow comes down to three questions, whatever position you sleep in: how you sleep most, how broad your shoulders are, and how soft your mattress is. Then pick a fill firm enough to hold the height. The finder below asks exactly that, for side, back and stomach sleepers.
Free tool
Pillow finder
About 5 in
Average shoulders, medium mattress: the middle of the usual 4 to 6 in. A label height: your towel stack finds yours.
Firmness: medium firm to firm.
Ours: Royal Goose Down Pillow in Firm, our fullest lift, $369 Queen, $419 King. Or the Cloud Pillow in Medium, from $199.99, in the same 800+ fill power down as our Heaven and Air duvets. US prices on 13 Nov 2026. We publish no pillow height: check ours against your number in the 60 night trial.
Side: add shoulders (narrow 0, average 1, broad 2) and mattress (soft 0, medium 1, firm 2). 0: 4 in or under. 1: 4 to 5 in. 2: 5 in. 3: 5 to 6 in. 4: 6 in. Mixed: one step lower. Buy a loft at your towel stack or a little above; under 4 in, none of ours.
- Side. Medium firm to firm: Royal Goose Down Pillow in Firm, or Cloud Pillow in Medium.
- Mixed or back. Medium: Cloud Pillow or Royal in Medium.
- Stomach. Low and soft: Cloud Pillow or Royal in Soft.
Questions people ask
What is the best pillow for side sleepers?
The one that holds your own towel number under your head all night. For most people that means a medium firm to firm pillow with 4 to 6 inches of loft. Of the pillows we make, the Royal Goose Down Pillow in Firm is the only feel we label for side sleepers alone; the Cloud Pillow in Medium is made for back and side sleepers.
What pillow do doctors recommend for side sleepers?
The clinicians whose videos we drew on point at a shape, not a brand: a pillow that keeps your head square to your shoulders, nose in line with the base of your throat, neither tipped down nor up. The photo check above tests exactly that.
Do side sleeper pillows with a cut out really work?
Some people love the room it gives the shoulder. There is little research on the shapes themselves. What decides it is still the height under your head, so run the photo check on any shape you try.
How do you use a side sleeper pillow?
As in the placement section above: edge to the top of your shoulder, head square, chin neutral. A second pillow between your knees or in your arms is a comfort choice, not a height fix.
How many pillows should a side sleeper use?
One under your head, at your height. Extra pillows are for hugging, for your knees, or for the look of the bed; our guide on how many pillows on a king bed covers the arranging.
Should I get a Queen or a King pillow?
Queen is 20 × 30 in and King is 20 × 36 in, in both of our pillows; the Cloud Pillow also comes in Full, 20 × 26 in. A King gives you room to turn over without sliding off the end. Cloud Pillow and pillowcase sizes are on our duvet size guide.
Which pillowcase fits?
Neither pillow comes with a case. Cloud Pillowcases come in pairs: Queen (21 × 32 in, $89) fits a Queen pillow and the Full Cloud Pillow, and King (21 × 38 in, $99) fits a King. They are 300 thread count cotton percale, OEKO-TEX certified, with an envelope closure that keeps any zipper or button away from your face. Both pillows and the cases are in our pillows.
Can I return a pillow if the height is wrong?
Yes. You cannot lie on a pillow before you buy it online, so you get 60 nights on your own bed instead, counted from the day your order is delivered. Returns and exchanges are free, with a prepaid return label and no restocking fee, and pillows are covered. For the UK and Australia the $50 shipping charge is not refunded. The details are on our shipping and returns page.
How do I wash a down pillow?
Both of ours are down and machine washable, the Royal Goose Down Pillow and the Cloud Pillow alike. Wash yours only when it needs it, cold on a gentle cycle with a mild down wash and an extra rinse, then dry it on low with clean dryer balls until completely dry. Skip bleach, fabric softener and high heat. The rest is in our duvet care guide.
How this was put together: the loft ranges and firmness words come from Wirecutter (updated 17 Sep 2026), Mattress Nerd (updated 12 Nov 2026) and the Spine Health Foundation (updated 10 Nov 2026), all read on 13 Nov 2026, and from videos by Sleep Doctor (2023), Sleepopolis (2020), Dr. Teresa Green (2022) and Dr. Jon Saunders (2023).
Our part: the towel stack is our own method and the finder's score bands are our own rule inside the published range. The drawings show proportions, not measurements of any pillow. YumeFeel pillow facts and USD prices are from our own product records and live pages, read on 13 Nov 2026; we do not publish a height for our pillows. We have not tested other brands' pillows. YumeFeel is our own brand.
Pillows and cases
Sleep on your number
Royal Goose Down Pillow
Firm: the fullest lift, to fill the space between your shoulder and ear.
From $369 USD
