Want adjustable loft
Coop Original Adjustable Pillow
Removable fill gives you room to adjust the height and feel to suit your mattress and sleeping position.
Updated October 2026
Best Pillows for Side Sleepers
Side sleepers often need more pillow loft to fill the space between shoulder and head, but the right height depends on body build, mattress softness and personal comfort. We compare 10 pillows using published materials, adjustability, shape and research-based fit considerations, with the testing status identified for each pick.
Start with the pillow that fits your preferences
These are research-based shopping starting points, not physical testing results or medical recommendations. Some retailer links earn us an affiliate commission at no extra cost to you. Compare construction and return terms before buying.
Want shoulder space
Eli & Elm Side Sleeper Pillow
A curved shoulder-cutout shape is worth comparing if a standard rectangle feels awkward near the shoulder.
Prefer a defined shape
Pillow Cube Side Cube Pro
Compare its structured, fixed-shape construction with adjustable-fill options before deciding.
Key Lab Findings
- More loft
- Side sleeping generally creates a larger head-to-mattress gap than back or stomach sleeping
- Source: Sleep Sage editorial analysis
- Shoulders
- Broader shoulders often require more loft when the mattress surface is otherwise similar
- Source: Sleep Sage editorial analysis
- Mattress
- A softer mattress can reduce the amount of pillow height a side sleeper needs
- Source: Sleep Sage editorial analysis
What Side Sleepers Need from a Pillow
High Loft (4–6")
Side sleepers need enough loft to fill the gap between mattress and head, keeping the cervical spine straight
Aim for a comfortable head-and-neck angleFirm but Yielding
Too soft and your head sinks too far; too firm and pressure points develop on your ear and cheek
Medium-firm is idealShoulder Accommodation
Cutouts or shredded fill let your shoulder drop into a comfortable position instead of being compressed
Leave comfortable room near the shoulderLoft That Lasts
Some fills compress as they age. Check construction, adjustability and care guidance when comparing pillows for long-term shape retention
Compare fill materials and maintenance needsCooling at the Contact Point
Side sleepers press one ear and cheek into the pillow for hours — dense solid foam traps heat right where you feel it most
Look for ventilated or shredded fillAdjustability
Shoulder width, mattress firmness and head size all change your ideal loft — an adjustable-fill pillow dials in the exact height
Add or remove fill to fitShopping note: Measure from the outer edge of your shoulder to the side of your neck — this is your minimum required pillow loft. Most side sleepers need 5–6 inches; broader-shouldered sleepers (over 18" wide) often need 6+. Then account for your mattress: a soft bed lets your shoulder sink in, so you can go an inch thinner than the raw measurement suggests. Measuring beats guessing every time.
#1
Best Shoulder Cutout
Eli & Elm Side Sleeper Pillow
U-shaped shoulder cutout and adjustable fill for side sleepers
9.3/10
Latex and polyester blend (adjustable)
Research evaluation — full lab score pending
9.5
Comfort
9.2
Support
Adjustable
Firmness
Curved cutout makes room for the shoulderAdjustable fill for custom loftOrganic cotton cover
$119$149
#2
Editor's Choice
Coop Original Adjustable Pillow
Consumer Reports Recommended - fully customizable loft
9.5/10
Cross-cut Memory Foam & Microfiber Blend
Research evaluation — full lab score pending
9.6
Comfort
9.5
Support
Adjustable (Medium)
Firmness
Consumer Reports RecommendedFully adjustable loft - add or remove fillCertiPUR-US and GREENGUARD Gold certified
$89$99
#3
Most Popular
Pillow Cube Side Cube Pro
Cube-shaped pillow that fills the shoulder gap perfectly for side sleepers
9/10
Premium memory foam
Research evaluation — full lab score pending
9.2
Comfort
9
Support
Medium-Firm
Firmness
Unique cube shape fills shoulder-to-head gap perfectlyThree height options for different body typesPremium memory foam construction
$99$129
#4
Best Cooling Memory Foam
Saatva Graphite Memory Foam Pillow
Graphite-infused memory foam for cool, contoured pressure relief
9.1/10
Graphite-infused shredded memory foam
Research evaluation — full lab score pending
9.3
Comfort
9.2
Support
Plush or Firm (choose at checkout)
Firmness
Graphite cooling outperforms gel infusionsTwo firmness options at checkoutOrganic cotton cover
$165$195
#5
Avocado Green Side Sleeper Pillow
Extra-high loft designed specifically for side sleepers
9.1/10
Shredded GOLS Organic Latex + Kapok Fiber
Research evaluation — full lab score pending
9.2
Comfort
9.5
Support
Medium-Firm (High Loft)
Firmness
Extra-high loft for proper side-sleeping alignmentSame organic certifications as Green PillowAdjustable — remove fill if too high
$179$199
#6
9/10
Kapok tree fiber + copper-infused shredded memory foam
Research evaluation — full lab score pending
9.2
Comfort
9
Support
Adjustable (Medium-Plush)
Firmness
Kapok fiber feels like luxurious downCopper provides antimicrobial coolingAdjustable loft via removable fill
$109$129
#7
9.3/10
Hyper-Elastic Polymer GelFlex Grid + Talalay Latex Core
Research evaluation — full lab score pending
9.4
Comfort
9.5
Support
Medium (Standard) / Medium-Firm (Tall)
Firmness
Exceptional cooling from GelFlex GridNo pressure points - grid adapts instantlyTalalay latex core for durable support
$159$199
#8
Best Value Adjustable
Marlow Pillow
Adjustable hybrid memory foam pillow with cooling mesh side panels
9/10
Shredded memory foam + polyester microfiber blend
Research evaluation — full lab score pending
9.1
Comfort
9
Support
Adjustable (Medium)
Firmness
365-night trial — best in classSignificantly cheaper than Coop OriginalCooling mesh gusset for hot sleepers
$65$75
#9
Zoey Sleep Side Sleeper Pillow
Curved shoulder notch with adjustable memory foam fill
8.8/10
Shredded CertiPUR-US memory foam
Research evaluation — full lab score pending
9
Comfort
8.8
Support
Adjustable
Firmness
Shoulder notch on both sidesAdjustable shredded foam fillCooling Tencel cover
$79$99
#10
9/10
Shredded Talalay Latex
Research evaluation — full lab score pending
9.2
Comfort
9
Support
Medium (adjustable)
Firmness
Talalay latex is bouncy and breathableAdjustable loft — remove fill to customize365-night trial matches their mattresses
$165$195
Side Sleeper Pillow Comparison
Prices shown are dataset references and may change at the retailer. Ratings are editorial assessments of materials, construction and side-sleeper fit—not measured lab results.
| Pillow | Fill | Firmness | Rating | Price | |
|---|---|---|---|---|---|
| Eli & Elm Side Sleeper Pillow | Latex and polyester blend (adjustable) | Adjustable | 9.3 | $119 | Check Price |
| Coop Original Adjustable Pillow | Cross-cut Memory Foam & Microfiber Blend | Adjustable (Medium) | 9.5 | $89 | Check Price |
| Pillow Cube Side Cube Pro | Premium memory foam | Medium-Firm | 9 | $99 | Check Price |
| Saatva Graphite Memory Foam Pillow | Graphite-infused shredded memory foam | Plush or Firm (choose at checkout) | 9.1 | $165 | Check Price |
| Avocado Green Side Sleeper Pillow | Shredded GOLS Organic Latex + Kapok Fiber | Medium-Firm (High Loft) | 9.1 | $179 | Check Price |
| Layla Kapok Pillow | Kapok tree fiber + copper-infused shredded memory foam | Adjustable (Medium-Plush) | 9 | $109 | Check Price |
| Purple Harmony Pillow | Hyper-Elastic Polymer GelFlex Grid + Talalay Latex Core | Medium (Standard) / Medium-Firm (Tall) | 9.3 | $159 | Check Price |
| Marlow Pillow | Shredded memory foam + polyester microfiber blend | Adjustable (Medium) | 9 | $65 | Check Price |
| Zoey Sleep Side Sleeper Pillow | Shredded CertiPUR-US memory foam | Adjustable | 8.8 | $79 | Check Price |
| Saatva Latex Pillow | Shredded Talalay Latex | Medium (adjustable) | 9 | $165 | Check Price |
Find Your Ideal Loft by Body Type
| Your Build | Ideal Loft | Ideal Firmness |
|---|---|---|
| Petite (shoulder width under 15") | 3.5–4.5 inches | Medium — soft fill that compresses under a lighter head |
| Average (15–17" shoulder width) | 4.5–5.5 inches | Medium-firm — the sweet spot for most adults |
| Broad-shouldered (17–19") | 5.5–6.5 inches | Firm — prevents head sinking below spine level |
| Very broad or 230+ lb (over 19") | 6+ inches or adjustable-fill | Firm shredded foam or solid cube-style foam |
| Side sleeper on a soft mattress | Subtract ~1 inch from the above | Same — the shoulder sinks into the bed, reducing the gap |
| Side sleeper on a firm mattress | Add ~1 inch to the above | Same — the shoulder stays on top of the bed, widening the gap |
Another take on this topic
For a separate editorial perspective, compare its pillow suggestions with the fit and materials information on this page. Different guides may use different selection criteria; Sleep Sage has not verified independent lab testing for that guide.
See Mr. Squish's side-sleeper pillow picksFrequently Asked Questions
What thickness pillow is best for side sleepers?
Broader shoulders (over 18") often need 6+ inches. The goal is filling the gap between mattress and head so your neck stays straight, not bent toward the mattress or pushed up toward the ceiling.
Are firm or soft pillows better for side sleepers?
Medium-firm. A too-soft pillow lets your head sink and bends your neck downward. A too-firm pillow creates pressure on your ear and shoulder. Medium-firm shredded memory foam (like Coop Original) and dense solid foam (like Pillow Cube) both work well.
What type of pillow fill is best for side sleepers?
Shredded memory foam and shredded latex are the most reliable: they hold loft, conform to the head and neck, and are usually adjustable. Solid molded foam (like Pillow Cube) is excellent for broad shoulders but can't be fine-tuned. Down and down-alternative compress too much overnight to maintain alignment on their own.
Why do side sleepers wake up with a numb arm?
Because the shoulder is being compressed under body weight without enough support. Either your pillow is too thin (head rolls onto the shoulder) or you don't have a body pillow to support the upper arm. A shoulder-cutout pillow fixes both problems.
Should side sleepers use a pillow between their knees?
Yes — a knee pillow keeps the top leg from rotating the pelvis forward, which twists the lower spine all night. It's the cheapest fix in sleep: a $15–25 knee pillow or body pillow often relieves morning lower-back tightness within a week, especially when paired with the right head pillow.
Should side sleepers use a body pillow?
Many find significant comfort improvements with one. A body pillow supports the upper arm, prevents the top knee from rotating the pelvis, and reduces lower-back strain. Pair a shoulder-cutout pillow with a body pillow for best results.
How often should side sleepers replace their pillow?
Every 18–36 months depending on fill. Shredded foam and latex hold structure longest (3+ years with fluffing). Down-alternative and cheap poly-fill often need replacing at 12–18 months because lost loft directly causes neck misalignment for side sleepers. The fold test: fold the pillow in half — if it doesn't spring back, it's done.
Is a contour pillow good for side sleepers?
It depends on the contour. Ergonomic cervical pillows (like the TEMPUR-Neck) work well for side sleepers who also spend part of the night on their back, because the raised edge supports the neck in both positions. Pure side sleepers with broad shoulders usually do better with a high-loft cube or adjustable shredded-fill pillow instead.
Looking wider than best pillows for side sleepers? Browse all pillow reviews to compare every pillow we have reviewed on loft, fill, cooling and price.