Best Sleeping Pillows for Side Sleepers: 7 Picks by Shoulder Width

The best sleeping pillow for most side sleepers is the Coop Home Goods Original Adjustable Pillow, because you can add or remove fill until your head sits level with your spine; the runner-up is the Purple Harmony in medium loft for people who sleep warm and like a springy, non-sinking surface. The rest of this guide helps you match loft to your shoulder width, because that one number decides more than brand or foam type.

Side sleepers need more height than back sleepers, since the pillow has to fill the gap between the ear and the mattress. If the pillow is too low your neck bends toward the mattress; too high and it tips the other way. Below you will find seven main picks, four alternatives, a loft chart and a plain-language buying guide. We did not personally use these products; every spec comes from maker pages or listing details, and anything we could not confirm is marked not listed.

Our top picks

Top pickTempur-Pedic TEMPUR-Ergo Neck Pillow

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Also greatTempur-Pedic TEMPUR-Ergo Neck Pillow

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Also greatRoyal Therapy Memory Foam Pillow

• Behind every great night’s sleep is our cervical…
• Royal Therapy side and back sleeper pillows don't…
• Ideal for sleepers who experience discomfort from traditional…

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Product	Key specs
Tempur-Pedic TEMPUR-Ergo Neck Pillow		Check price
Tempur-Pedic TEMPUR-Ergo Neck Pillow		Check price
Royal Therapy Memory Foam Pillow	Behind every great night’s sleep is our cervical… Royal Therapy side and back sleeper pillows don't… Ideal for sleepers who experience discomfort from traditional…	Check price
Ultra Pain Relief Cooling Pillow for Neck	Tired of waking up with neck pain and… EXPERIENCE UNINTERRUPTED, BLISSFUL SLEEP WITH OUR VERSATILE PILLOW… Unlike 90% of support pillows, Cozyplayer utilizes the…	Check price

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Top Picks at a Glance

• Best Overall: Coop Home Goods Original Adjustable Pillow
• Best Premium: Purple Harmony Pillow, medium loft
• Best Shredded Foam with a Breathable Cover: DreamyBlue Signature Adjustable Shredded Memory Foam Pillow
• Best Soft Fill: Casper Original Pillow
• Best Budget: Utopia Bedding Shredded Memory Foam Pillow
• Best Value Pair: Serta Hotel Bed Pillows, Medium Firm
• Best for Arm and Shoulder Room: AM AEROMAX Side Sleeper Pillow with Arm Hole

1. Coop Home Goods Original Adjustable Pillow: Best Overall

• Fill: cross-cut memory foam blended with microfiber, with an extra bag of fill included
• Queen size is listed around 19 x 29 in with roughly 6 in of depth
• Feel: medium-firm
• Cover: removable and machine washable, bamboo-derived viscose and polyester blend
• Certifications named by the maker: CertiPUR-US and GREENGUARD Gold

Best for: side sleepers who want to tune the loft over a few nights. Skip if: you want a pillow that stays one fixed height out of the bag.

A side sleeper’s real problem is the gap between the ear and the mattress, and that gap is different for every body. The Coop Original solves it by letting you remove or add fill through the zipper until your head sits level with your spine. That is why it is our first pick: you are not betting on one fixed height, and if your mattress changes in two years you can change the pillow with it.

In practice, expect a short adjustment period. Cross-cut foam compresses unevenly at first, so most owners end up taking a handful of fill out, then putting a little back. If you sleep on a firm mattress you will probably want more fill because your shoulder stays up; on a soft mattress that lets your shoulder sink, you will want less. A good method is to change the fill in small amounts, sleep on it for two nights, then decide.

The pillow is a gentle contour rather than a hard cervical shape, so it also works if you roll onto your back during the night. The maker lists a limited warranty on its own site, which is worth reading before you commit to the fill-tuning process, and the zip-off cover means you can launder the outside without wrestling the foam.

Pros

• Adjustable loft through the zipper
• Medium-firm feel that suits many side sleepers
• Washable cover
• Extra fill included

Cons

• Takes a few nights to dial in
• Foam blend is warmer than a latex or gel-grid design

2. Purple Harmony Pillow (Medium Loft): Best Premium

• Core: ventilated Talalay latex, wrapped on all sides by Purple’s honeycomb GelFlex Grid
• Standard size listed at about 26 x 17 x 6.5 in for the medium loft
• Three fixed heights exist: low about 5.5 in, medium about 6.5 in, tall about 7.5 in
• Cover: stretch knit, moisture-wicking
• Published firmness rating for the latex core: not listed

Best for: side sleepers who run warm and like a bouncy, pressure-spreading feel. Skip if: you want to change the height later.

The Harmony is the only pillow in this list with a latex core, and it feels nothing like memory foam. The grid wrap gives a springy, slightly cool surface, and the latex underneath rebounds quickly, so your head does not sink into a pocket. Side sleepers who dislike that stuck-in-foam feeling tend to like this design.

Because the loft is fixed, choosing the right height matters. The maker points the medium version toward side and combination sleepers with medium to large frames. If your shoulder is on the narrow side, the low version is the one to look at; with very broad shoulders, the tall version is the better match. The listing we reviewed is for the medium standard size.

It is also the most expensive pick here, so we would only reach for it if you have already learned that memory foam sleeps hot for you, or if you want a pillow that keeps its shape without any fluffing. Because the foam is not shredded, there is nothing to clump.

Pros

• Cool, springy surface
• Three loft options
• No sink-in feeling
• Holds shape without fluffing

Cons

• Fixed height
• Highest price tier

3. DreamyBlue Signature Adjustable Shredded Memory Foam Pillow: Best Shredded Foam with a Breathable Cover

• Fill: shredded memory foam, adjustable
• Cover: bamboo rayon, washable
• Certification listed: CertiPUR-US
• Sizes: queen and king listed
• Exact loft in inches: not listed

Best for: hot-leaning side sleepers who want shredded foam with a breathable cover. Skip if: you prefer a solid, shaped contour block.

Shredded foam behaves differently from a solid slab: it flows around the neck and shoulder rather than pushing back as one piece. For side sleepers that often means less pressure under the ear, with the trade-off that the pillow needs a quick fluff before bed.

The listing stresses neutral spinal alignment and a washable cover. We cannot verify an exact loft figure, so treat the first few nights as a fitting period, and take out fill if your chin tips toward your chest or add some if your ear is dropping toward the mattress.

Compared with the Coop Original, this is the simpler, softer-leaning option; compared with the grid design above, it is warmer but far friendlier on price. It is a strong choice for someone who wants adjustability and a cover that breathes.

Pros

• Adjustable fill
• Breathable bamboo rayon cover
• Certified foam

Cons

• Needs fluffing
• Loft figure not listed

4. Casper Original Pillow (Down-Alternative): Best Soft-Fill Pillow

• Fill: down-alternative
• Cover: breathable cotton, machine washable
• Listed as suitable for side, back and stomach sleepers
• Loft in inches: not listed
• Firmness rating: not listed

Best for: side sleepers who prefer a squishy, no-foam pillow. Skip if: you need firm, stable neck support all night.

Not every side sleeper wants foam. The Casper Original is a plush fill pillow with a more traditional feel, and it is the choice for people who like to scrunch and reshape their pillow. If your shoulders are narrow and you sleep on a firmer mattress, a softer fill pillow like this can land at the right height with no adjustment at all.

The honest limit is support. Fill pillows compress through the night, so a broad-shouldered side sleeper may wake with the head dipping toward the mattress. In that case move up to one of the foam or latex picks, or fold the pillow in half for the first part of the night as many fill-pillow users do.

Machine washability is a practical bonus for anyone who shares a bed with a pet or sleeps warm, and there is no foam smell to air out.

Pros

• Soft, familiar feel
• Washable
• Easy to reshape

Cons

• Less stable support
• Specs sparse

5. Utopia Bedding Shredded Memory Foam Pillow: Best Budget

• Fill: shredded memory foam, adjustable
• Size: queen, sold as a single pillow
• Cover: washable
• Marketed as cooling
• Exact loft: not listed

Best for: side sleepers who want to try adjustable shredded foam without a big spend. Skip if: you have a broad frame that needs a tall, firm pillow.

This is the lowest-risk way to learn whether adjustable shredded foam suits you. If it works, you have saved money; if it does not, you have lost little and learned your preferred loft for a pricier purchase later.

Expect a simpler build than the premium picks. Independent sleep-review sites generally warn that budget shredded foam can clump over months, so plan on fluffing and occasionally redistributing the fill. Keep any removed fill in a bag in case you want it back.

It is also a sensible second pillow for a guest room, a travel-friendly spare, or a trial before committing to the Coop or DreamyBlue.

Pros

• Low cost
• Adjustable
• Washable cover

Cons

• Can clump over time
• Fewer certifications listed

6. Serta Hotel Bed Pillows, Medium Firm (Set of 2): Best Value Pair

• Fill: down-alternative, gusseted construction
• Cover: 400 thread count 100% cotton
• Feel: medium firm
• Sold as a set of 2
• Loft in inches: not listed

Best for: couples or guest rooms that need two matching gusseted pillows. Skip if: you want contouring foam support.

The gusset is a strip of fabric along the edge that keeps the pillow tall and boxy rather than tapering. For side sleepers that matters, because a tapered edge leaves the neck unsupported when you slide toward the side. Pairing a gusseted pillow with the medium-firm option is a reasonable middle ground between squishy and rigid.

This set makes sense when you are outfitting a bed for two or stocking a guest room. It will not give the sculpted support of foam, but it costs little per pillow and washes more easily than foam. Rotate and fluff the pair weekly to slow down flattening.

Pros

• Two pillows at a low cost
• Gusseted for height
• Cotton cover

Cons

• Fill compresses
• No contour

7. AM AEROMAX Memory Foam Side Sleeper Pillow with Arm Hole (7 Inch): Best for Arm and Shoulder Room

• Fill: memory foam
• Height: 7 in listed
• Arm channel for resting the lower arm
• Marketed for neck, shoulder and rotator cuff comfort
• Cover details: not listed

Best for: side sleepers whose bottom arm goes numb or gets squashed. Skip if: you move between positions all night.

The classic complaint of side sleeping is the trapped bottom arm. This pillow gives that arm a channel, so you are not lying on it or hugging a pillow out of habit, and its 7 inch height suits broader shoulders.

It is a specialist shape. If you roll to your back you will fight the contour. Anyone with an ongoing shoulder problem should ask a clinician before relying on a pillow for it, since a pillow is a comfort aid rather than a treatment.

Pros

• Dedicated arm channel
• Tall 7 in design for broad shoulders
• Low cost

Cons

• Awkward if you change positions
• Specialist shape

Also Consider

Pacific Coast Goose Feather and Down Firm Pillows: A natural-fill firm option sold as a set of 2 and marketed for side and back sleepers. Expect a classic down-and-feather feel that needs regular fluffing, and skip it if you have feather allergies.

RejuveNite Talalay Latex Bed Pillow, High Profile: A latex pillow with an OEKO-TEX label and a cotton sateen cover; the high profile suits broad shoulders. Loft in inches is not listed, so check the maker page before buying.

Sidney Sleep Adjustable Curved Pillow: A crescent shape with extra shredded fill, queen 19 x 29 in and CertiPUR-US labeled. Good if you like a curved neck rest.

MONSAO Side Sleeper Pillow with Arm Hole, High Loft: A taller sibling of the arm-hole style, intended for broad frames. The same single-position caveat applies.

How We Chose

We started with the question of what a side sleeper actually needs: a pillow tall enough to fill the ear-to-shoulder gap, stable enough to hold that height all night, and cool enough not to wake you. We then sorted real products currently sold into types: adjustable foam, latex or grid, down-alternative fill, gusseted sets and shaped specialists, and picked the strongest example of each.

Specs come from manufacturer pages and listing details, supplemented by independent sleep-review sites such as Mattress Nerd and Mattress Clarity for context on feel. This guide is research-based, and we did not personally use these products. Where a spec such as exact loft was not published, we say not listed. Prices are shown only as tiers because they change often.

We limited the list to two pillows per brand and left out anything whose key details we could not confirm. You should still read the maker page before you buy, because sizes and fills are updated from time to time.

Buying Guide

Match loft to shoulder width

Loft is the height of the pillow when your head is on it. A common rule of thumb is to match it to the distance between the side of your neck and the outer tip of your shoulder. Narrow frames usually land around 4 to 5 inches, average frames around 5 to 6, and broad frames 6 to 7 or more.

Compression changes the number. A 6.5 inch memory foam pillow may settle to 5 inches under your head, so adjustable fill is useful if you are between sizes. A quick home check is to lie on your side and have someone look from behind: your nose should line up with the middle of your chest, not point up or down.

Consider your mattress

A soft mattress lets your shoulder sink, which reduces the gap and calls for a lower pillow. A firm mattress holds your shoulder up, so you need more height. If you changed your mattress recently, your old pillow height may no longer suit you, which is a very common reason a once-loved pillow suddenly feels wrong.

Choose a fill type

Shredded memory foam is adjustable and contouring but tends to run warm. Solid latex or grid designs are springier and cooler but fixed. Down-alternative is soft and washable but compresses. Natural down gives lift but needs fluffing and may bother allergy sufferers. If you cannot decide, adjustable shredded foam is the most forgiving first purchase.

Check temperature and cover

If you wake hot, look for ventilated latex, a grid design or a cooling cover. Removable, washable covers are worth paying for, since pillows absorb sweat and skin oils over months. A cover that unzips fully also lets you inspect the fill.

Know when to replace it

A pillow that has lost its shape, smells even after washing or no longer holds your head level is due for replacement. Many sleep sites suggest roughly every one to three years, depending on fill. Foam and latex last longer than fiber; feather and down last longer if fluffed.

Loft Chart and Common Mistakes

These ranges are starting points, not guarantees; your mattress and sleeping style move them.

The common mistakes are buying by brand reputation instead of height, hugging a second pillow to compensate for a pillow that is too low, and expecting a fixed-height pillow to feel right on night one. Another is judging a foam pillow after a single night: give it at least a week. If you have ongoing neck, shoulder or arm symptoms, speak to a doctor or physical therapist rather than relying on a pillow alone.

Frequently Asked Questions

What is the best loft for a side sleeper?

Most side sleepers do best between about 4 and 7 inches, depending on shoulder width. Narrow frames sit at the low end and broad frames at the high end, and adjustable pillows let you fine tune.

Is memory foam or latex better for side sleepers?

Neither is better in every case. Memory foam contours and is often adjustable, while latex is springier and cooler but fixed in height, so choose by how you sleep and how warm you run.

Do side sleepers need a firm pillow?

Usually medium-firm to firm. A very soft pillow can compress until your head tilts toward the mattress, particularly for broad-shouldered sleepers.

Should I use one pillow or two?

Use one properly sized pillow if you can. Stacking two creates an unstable surface, and many people only do it because their single pillow is too low.

How often should I replace a side sleeper pillow?

Roughly every one to three years, depending on fill. Replace sooner if it stays flat after fluffing or no longer keeps your head level.

Can a pillow fix neck pain?

A well-fitted pillow can make sleeping more comfortable, but it is not a treatment. If you have persistent pain, numbness or weakness, see a doctor.

Are washable covers important?

They are a practical benefit because pillows collect sweat and skin oils, and a removable cover is easier to keep fresh than the whole pillow.

Which One Should You Buy?

If you want one pillow that adapts to you, choose the Coop Original. If you sleep warm and prefer a lively surface, choose the Purple Harmony in the loft that fits your shoulders. If you want to experiment cheaply, start with the Utopia shredded foam. Pick the AM AEROMAX only if the trapped-arm problem is your main complaint, and the Serta set or Casper if you prefer a softer, fiber-filled feel.

Whichever you choose, give any new pillow at least a week and adjust the fill or height before judging it.

Sources

• Coop Sleep Goods product page (The Original pillow)
• Purple product page for the Harmony Pillow
• Mattress Nerd, Coop Home Goods Original Pillow review
• Mattress Clarity, Coop adjustable pillow review
• Manufacturer listing details for Casper, Serta, Utopia Bedding, DreamyBlue and AM AEROMAX

Last updated: October 2026