What Is the Best Pillow for Side Sleepers? (US 2026)
For US side sleepers in 2026, the best pillow is usually a firmer, higher one that is thicker under the neck than under the head, so your spine stays straight, as Harvard Health advises. Here is how to pick one for side, back or neck pain, and how to pay less for it.
For side sleepers in the US in 2026, the best pillow is usually a firmer, higher pillow that fills the gap between your ear and shoulder, so your head stays level with your spine. Harvard Health advises side sleepers to keep the spine straight with a pillow that is higher under the neck than under the head. Memory foam, latex or an adjustable shredded fill pillow usually holds that height better than a soft, flat one.
ShopBack US is a free app and website that returns part of what you spend at partner stores as cash you can withdraw. Pillow sellers such as Target and Purple are on ShopBack US. Open ShopBack, tap the store, then check out. Join ShopBack US for free.
This guide gives general comfort and buying advice, not medical advice. If you have neck or back pain that does not go away, see a doctor.
What is the best pillow for side sleepers?
The best pillow for side sleepers is one high and firm enough to keep your neck straight in line with your spine, which usually means a thicker pillow than back or stomach sleepers use. When you lie on your side, there is a gap between your head and the mattress about the width of your shoulder. A pillow that is too flat lets your head drop toward the mattress; one that is too high pushes it up. Either way, your neck bends all night.
Harvard Health's guidance on sleeping with neck pain makes two points that apply directly:
- Side and back are the easiest positions on the neck.
- For side sleeping, use a pillow that is higher under your neck than your head, which keeps the spine straight.
What to look for, in plain terms:
| Feature | What suits most side sleepers | Why |
|---|---|---|
| Height (loft) | Medium-high to high | Fills the shoulder gap so your head stays level |
| Firmness | Medium-firm to firm | Holds its height under the weight of your head |
| Fill | Memory foam, latex or adjustable shredded fill | Keeps its shape through the night |
| Shape | Standard, or contoured with a raised neck edge | A raised edge supports the neck more than the head |
| Adjustability | Removable fill if you can get it | Lets you match the height to your shoulder width |
Broad shoulders usually need more height; a softer mattress usually needs less, because your shoulder sinks in further. The simplest test: lie on your side in a mirror or ask someone to check whether your nose lines up with the middle of your chest. If your head tilts down, go higher; if it tilts up, go lower.
Memory foam, latex, feather or adjustable fill?
For side sleepers, foam, latex and adjustable shredded fill usually beat feather because they hold their height. Here is how the common fills compare:
- Solid memory foam. Molds to your head and neck and holds a steady height. Harvard Health notes that memory foam conforms to the contour of the head and neck. Some people find it warm.
- Shredded foam (adjustable fill). Usually comes with a zip so you can remove fill to lower the height. This is often the easiest way to get the height right for your shoulders.
- Latex. Springier than memory foam and usually firm, which suits side sleepers who want strong support.
- Feather or down. Soft and easy to shape. Harvard Health says feather pillows conform easily to the neck but collapse over time and should be replaced every year or so. A fuller, firmer feather pillow works better for side sleeping than a flat one.
- Polyester fiberfill. Usually the lowest price, but it tends to flatten sooner, so it may not keep side sleepers well supported for long.
What is the best pillow for neck pain?
The best pillow for neck pain is one that supports your neck in a neutral position without being too high or stiff, used while sleeping on your side or back. Harvard Health warns that a pillow that is too high or stiff keeps the neck flexed overnight and can lead to morning pain and stiffness. The NHS's advice for easing neck pain includes using a low, firm pillow.
Practical options that follow that advice:
- A contoured (cervical) pillow. Harvard Health describes pillows with built-in neck support and an indentation for the head to rest in. Some are made with memory foam.
- A neck roll in a flatter pillow. Harvard Health suggests tucking a small neck roll into the pillowcase of a flatter, softer pillow as a low-cost alternative.
- A feather pillow that molds to your neck, replaced once it starts to collapse.
- Avoid stacking pillows. Two pillows usually push your head too high, the problem Harvard Health warns about.
Harvard Health also notes a link between poor sleep and musculoskeletal pain, including neck and shoulder pain, so getting the pillow right is only part of the picture. The NHS advises seeing a GP if neck pain does not go away after a few weeks; in the US, that means your doctor.
For travel, Harvard Health suggests a horseshoe-shaped pillow to stop your head dropping to one side if you doze on a plane, train or car, as long as it is not so thick behind the neck that it pushes your head forward.
What is the best pillow for back sleepers?
The best pillow for back sleepers is usually a medium-height pillow that supports the curve of your neck while letting your head rest a little lower. Harvard Health suggests a rounded pillow to support the natural curve of the neck, with a flatter pillow cushioning the head, or a pillow with built-in neck support and an indentation for the head.
What helps back sleepers most:
- Medium loft. Lower than a side sleeper's pillow, because there is no shoulder gap to fill. Too high a pillow pushes your chin toward your chest.
- Neck support. A contoured pillow, or a small roll under the neck, supports the curve better than a flat pillow.
- A pillow under your knees. Cleveland Clinic notes that people with back or neck pain often get relief sleeping on their back with a pillow as a bolster under the knees, and that a supportive pillow under the neck can help too.
Cleveland Clinic also says back sleeping is often the most comfortable position for people with neck and back pain, while side sleeping can help with snoring, sleep apnea and pregnancy. Many people switch positions during the night, so if you sleep on both your side and back, an adjustable fill pillow lets you settle on a height that works for both.
Stomach sleepers need the thinnest pillow of all, or none. Harvard Health says stomach sleeping is tough on the spine because the back is arched and the neck is turned, and suggests starting the night on your back or side where you can.
Purple vs Target vs Macy's: where to buy a pillow in the US
Purple sells its own branded pillows, while Target and Macy's carry pillows from a range of brands, so the right store depends on which pillow suits your sleeping position and what it costs you after ShopBack. Prices change often and depend on the exact pillow, so compare the same type of pillow across stores rather than store against store.
| Store | What it sells | On ShopBack US |
|---|---|---|
| Purple | Its own pillows, mattresses and bedding | Yes; Purple's ShopBack page does not list category exclusions at the time of writing |
| Target | Pillows from many brands and price points | Yes; ShopBack's Target page lists Home as an eligible category |
| Macy's | Pillows from many brands | Yes, but ShopBack's Macy's page lists Home among its exclusions at the time of writing, so check before buying bedding |
What to check before you buy, wherever you shop:
- Return rules for opened pillows. Many stores treat bedding differently once it has been used. Read the store's return policy before you buy.
- Size. A standard pillow suits most people; queen and king sizes are wider, not usually higher.
- Pillowcase fit. A thick side-sleeper pillow may need a deeper case.
Best pillow deals in the US: how to pay less
The best deal is the one with the lowest effective price: what you pay at checkout, minus what ShopBack returns after the order is confirmed. ShopBack lowers the effective price of flights, hotels and online orders after you pay.
Cashback lowers what you actually pay for an order. It comes back as cash, so it works like a discount on the price, not like points or miles.
How to do it:
- Pick the type first. Decide height, firmness and fill using the sections above.
- Compare the same type at two or three stores. Purple and Target are a good start.
- Open ShopBack, tap the store, then check out. Finish the order in the same session so it tracks.
- Use codes carefully. ShopBack's Purple and Target pages exclude purchases made with vouchers or promo codes not featured on ShopBack.
A worked example, with an illustrative rate only: on a $100 pillow at Purple at an illustrative 3%, $3 comes back, so the effective price is $97. Check the live rate on the ShopBack Purple page, because rates and terms change.
Sale timing helps too. Big US sale periods such as Black Friday, Cyber Monday and Labor Day often include bedding. Our US 2026 Sale Calendar lists the main dates.
Frequently asked questions
What is the best pillow for side sleepers?
Usually a firmer, higher pillow that fills the gap between your ear and shoulder. Harvard Health advises side sleepers to keep the spine straight with a pillow that is higher under the neck than under the head. Memory foam, latex or an adjustable shredded fill pillow tends to hold that height through the night better than a soft, flat one.
What is the best pillow for neck pain?
One that keeps your neck in line with your spine without being too high or stiff. Harvard Health warns that a pillow that is too high or stiff keeps the neck bent overnight and can cause morning pain, and the NHS suggests a low, firm pillow for neck pain. Contoured memory foam or a feather pillow that molds to your neck are common choices. See a doctor if pain does not ease.
What is the best pillow for back sleepers?
A medium-height pillow that supports the curve of your neck while your head rests lower. Harvard Health suggests a rounded pillow under the neck with a flatter pillow cushioning the head, or a pillow with built-in neck support and an indentation for the head. Cleveland Clinic adds that a pillow under the knees can ease back and neck pain.
How thick should a pillow be for a side sleeper?
Thick enough to keep your head level with your spine when you lie on your side, which usually means a higher pillow than back or stomach sleepers use. People with broad shoulders generally need more height. An adjustable fill pillow lets you add or remove fill until your head is level.
Is memory foam or feather better for side sleepers?
Memory foam usually suits side sleepers better because it holds its height. Harvard Health notes that feather pillows conform easily to the neck but collapse over time and should be replaced every year or so. If you like feather, choose a fuller, firmer one and plumping it often helps.
How often should you replace a pillow?
It depends on the fill. Harvard Health says feather pillows should be replaced every year or so because they collapse. Foam and latex pillows usually last longer, but replace any pillow once it no longer holds its height or you wake up with a stiff neck.
Is a Purple pillow or a Target pillow better for side sleepers?
It depends on the pillow, not the store. Purple sells its own branded pillows, while Target carries a range of brands and price points. Pick the height, firmness and fill your sleeping position needs, then compare the effective price, what you pay minus what ShopBack returns, at each store.
Where can I get the best deal on a pillow in the US?
Compare the same type of pillow at a few stores and check the effective price. Open ShopBack, tap the store, then check out. ShopBack lowers the effective price of flights, hotels and online orders after you pay. Purple and Target are both on ShopBack US; check each store's ShopBack page for eligible categories.
What is the best pillow for stomach sleepers?
A very thin, soft pillow, or none at all. Harvard Health says sleeping on your stomach is tough on the spine because the back is arched and the neck is turned, and suggests starting the night on your back or side if you can.
Can I earn Cashback on pillows at Macy's?
Check first. At the time of writing, ShopBack's Macy's page lists Home among its exclusions, which can cover bedding and pillows. ShopBack's Target page lists Home as an eligible category, and Purple's ShopBack page does not list category exclusions.
Related reads
Open ShopBack before you check out at: Target · Purple
About this guide
Sleep position and pillow guidance comes from Harvard Health Publishing's article on neck pain and sleep, Cleveland Clinic's guide to sleeping positions and the NHS page on neck pain. Store eligibility comes from each store's ShopBack US page at the time of writing. Rates change, so this guide points to the live rate on each store's ShopBack page instead of quoting one.
Disclaimer
The views and recommendations expressed in this article are those of the author. This guide is general information about choosing a pillow and is not medical advice; if you have ongoing neck or back pain, talk to a doctor. Prices, product ranges, return policies and Cashback eligibility vary by store and over time. Check the terms on each store's ShopBack US page before you buy. This article is intended for general informational purposes only and should not be considered professional or financial advice.
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