Quick Answer: The best pillow for side sleepers is a medium-firm pillow with a loft of 4 to 6 inches that fills the gap between your shoulder and head. Memory foam, latex, and adjustable shredded fill are the top choices. Look for a pillow that keeps your neck aligned with your spine, not tilted up or drooping down.
In This Guide
- Why Side Sleepers Need a Different Pillow
- What to Look for in a Side Sleeper Pillow
- Best Pillow Fill Types for Side Sleeping
- Ergonomic and Contour Pillows for Side Sleepers
- Top Side Sleeper Pillows in Canada
- Common Pillow Mistakes Side Sleepers Make
- How Your Mattress Affects Your Pillow Choice
- FAQs
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Why Side Sleepers Need a Different Pillow
About 74% of Canadians sleep on their side at least part of the night, according to research from the Canadian Chiropractic Association. Side sleeping is generally considered the healthiest sleep position for spinal alignment and reduced snoring. But it creates a specific challenge that back and stomach sleepers do not face: the shoulder gap.
When you lie on your side, your shoulder pushes into the mattress and creates a space between the mattress surface and your head. If your pillow does not fill this gap properly, your neck tilts either up or down, putting strain on the cervical vertebrae, neck muscles, and shoulder joints.
A back sleeper needs a relatively thin pillow because the distance from the mattress to the back of the head is short. A side sleeper needs a thicker, firmer pillow because the distance from the mattress to the side of the head is much greater. Using the wrong pillow for your sleep position is one of the most common causes of morning neck pain and stiffness.
What the Research Says
A 2021 study published in the Journal of Physical Therapy Science found that pillow height significantly affects cervical spine alignment in side sleepers. Participants who used pillows matched to their shoulder width reported 43% less morning neck stiffness compared to those using standard-height pillows. The study recommended a pillow height equal to the distance from the outer edge of the shoulder to the side of the neck for optimal alignment.
What to Look for in a Side Sleeper Pillow
Not every pillow marketed as "for side sleepers" actually delivers. Here are the specific features that matter.
Loft (Height)
Loft is the most important factor for side sleepers. You need a pillow thick enough to keep your head level with your spine. For most adults, this means:
- Small frame / narrow shoulders: 4 inches of loft
- Average build: 4.5 to 5 inches
- Broad shoulders / large frame: 5 to 6 inches
Here is a simple test: lie on your side on your mattress with the pillow under your head. Have someone look at you from the foot of the bed. Your nose should be roughly centered between your collarbones. If your head tilts toward the mattress, the pillow is too thin. If your head tilts toward the ceiling, it is too thick.
Firmness
Side sleepers need medium-firm to firm support. A soft, fluffy pillow feels wonderful for about five minutes, then compresses under the weight of your head and leaves your neck unsupported. A good side sleeper pillow should compress slightly under your head (for comfort) but maintain enough height to keep your spine aligned throughout the night.
Shape
Two main shapes work well for side sleeping:
- Traditional rectangular: The standard pillow shape works fine if the loft and firmness are correct
- Contour/ergonomic: These have a curved shape with a higher edge to support the neck and a lower centre for the head. They can work very well, but only if the contour dimensions match your body. An ergonomic side sleeper pillow with the wrong proportions can be worse than a standard pillow
Adjustability
Adjustable pillows let you add or remove fill to dial in the exact loft you need. This is especially useful for side sleepers because the "right" height varies based on your body proportions, mattress firmness, and personal preference. Shredded foam and buckwheat hull pillows are the most common adjustable options.
Side Sleeper Pillow Checklist
- Loft: 4 to 6 inches depending on shoulder width
- Firmness: Medium-firm to firm (should not flatten completely)
- Fill: Memory foam, latex, shredded foam, or buckwheat hulls
- Cover: Breathable fabric (cotton, bamboo, or Tencel)
- Shape: Standard or contour, based on personal preference
- Trial period: At least 30 nights (ideally 100+)
Best Pillow Fill Types for Side Sleeping
The fill material determines how a pillow feels, how well it supports, and how long it lasts. Here is how each type performs for side sleepers.
Memory Foam (Solid or Shredded)
Memory foam is the most popular fill for side sleeper pillows, and for good reason. It conforms to the shape of your head and neck, distributing pressure evenly. Solid memory foam pillows maintain a consistent loft, while shredded memory foam allows you to adjust the height by adding or removing fill.
Pros: Excellent pressure relief, consistent support, good for neck alignment
Cons: Can retain heat (look for gel-infused or ventilated options), may have an initial off-gassing smell
Latex
Natural latex is bouncy, responsive, and breathes better than memory foam. It springs back quickly when you shift positions, which is helpful if you move around during the night. Latex pillows tend to be on the firmer side, which works well for side sleepers who need solid support.
Pros: Naturally cool, durable (lasts 3 to 5 years longer than foam), hypoallergenic
Cons: Heavier than other fills, less conforming than memory foam, higher price point
Down and Down Alternative
Down pillows are soft and luxurious, but they are generally not the best choice for side sleepers. Down compresses easily, so even a high-loft down pillow will flatten to 2 or 3 inches under the weight of your head. If you love the feel of down, look for a down pillow with a foam or latex core surrounded by a down outer layer. This gives you the softness of down with the support of foam.
Pros: Soft, lightweight, breathable
Cons: Insufficient support for most side sleepers, flattens over time, needs frequent fluffing
Buckwheat Hulls
Buckwheat hull pillows are a niche but excellent option for side sleepers. The hulls conform to your head and neck shape, provide firm support, and allow excellent airflow. They are fully adjustable (add or remove hulls), and they do not compress over time like foam. The trade-off is that they are heavier and make a rustling sound when you move.
Pros: Fully adjustable, firm support, excellent airflow, long-lasting
Cons: Heavy (can weigh 4 to 8 kg), noisy, takes time to adjust to
| Fill Type | Support Level | Side Sleeper Rating | Price Range (CAD) | Lifespan |
|---|---|---|---|---|
| Memory Foam (solid) | Medium-firm to firm | Excellent | $60 - $200 | 2 - 4 years |
| Shredded Memory Foam | Adjustable | Excellent | $70 - $180 | 3 - 5 years |
| Latex | Medium-firm to firm | Very Good | $80 - $250 | 4 - 7 years |
| Down | Soft | Fair | $100 - $350 | 5 - 10 years |
| Down Alternative | Soft to medium | Fair | $30 - $80 | 1 - 3 years |
| Buckwheat Hulls | Firm, adjustable | Very Good | $50 - $120 | 5 - 10 years |
Ergonomic and Contour Pillows for Side Sleepers
Ergonomic pillows are designed with specific curves and contours to cradle the neck and support the head. For side sleepers, the most common ergonomic designs include:
Cervical Contour Pillows
These have a wave-like shape with a raised edge for neck support and a dip in the centre for the head. The idea is that the raised edge fills the gap between your shoulder and neck while the lower centre keeps your head at the right height. They work well if the contour dimensions match your body, but they are not adjustable, so it can be hit or miss.
Crescent-Shaped Side Sleeper Pillows
Some brands make pillows with a crescent or U-shaped cutout at the bottom edge. This cutout provides space for your shoulder, allowing you to pull the pillow closer to your neck without your shoulder getting in the way. The Nest Bedding Easy Breather Side Sleeper is one popular example of this design.
Dual-Height Pillows
These have different heights on each side: a higher side for side sleeping and a lower side for back sleeping. If you switch positions during the night, a dual-height pillow can accommodate both without requiring a pillow swap.
Our advice on ergonomic pillows: They can be a great solution, but only if the shape fits your body. If possible, try an ergonomic side sleeper pillow in person before buying. A shape that works for one person may feel completely wrong for another. Adjustable shredded foam pillows are more forgiving because you can customize the loft yourself.
Top Side Sleeper Pillows Available in Canada
Here are pillows that consistently perform well for side sleepers, all available to Canadian shoppers.
| Pillow | Fill | Loft | Adjustable | Price (CAD) | Trial |
|---|---|---|---|---|---|
| Coop Sleep Goods Original | Shredded memory foam + microfibre | Adjustable | Yes | $100 - $130 | 365 nights |
| Saatva Latex Pillow | Shredded natural latex | High | Dual-layer | $175 - $200 | 45 days |
| Silk & Snow Pillow | Gel memory foam | Medium-high | No | $85 | 365 nights |
| Endy Pillow | Gel microfibre clusters | Adjustable | Yes | $80 - $100 | 60 nights |
| Douglas Pillow | Gel memory foam | Medium-high | No | $70 | 30 nights |
| Beckham Hotel Collection | Down alternative | Medium | No | $50 - $65 (2-pack) | 30 days |
| Hullo Buckwheat Pillow | Buckwheat hulls | Adjustable | Yes | $80 - $130 | 60 nights |
A few notes on these picks. The Coop Sleep Goods Original is probably the safest choice for side sleepers who are unsure what they need. The adjustable fill means you can dial in the perfect height, and the 365-night trial gives you plenty of time to test it. The Saatva Latex is the premium option for people who prefer a bouncier, naturally cool feel. And the Beckham Hotel Collection is the budget pick, though side sleepers with broad shoulders may find it too soft.
Goose Down Pillows for Side Sleepers at Mattress Miracle
Most lists skip natural down, but it is worth considering. A high-loft goose down pillow compresses to fill the shoulder gap without the rigidity of memory foam, and it breathes better than any synthetic. The trade-off: down pillows require fluffing and are not ideal for allergy-prone sleepers.
We carry several from Highland Feather at our Brantford showroom:
- Tortosa 600 Loft White Goose Down Pillow - 600 fill power, soft to medium feel. Good starting point for most side sleepers. 82
- Santa Barbara 289TC White Goose Down Pillow - 600 fill power with a tighter weave shell. Similar loft, slightly firmer shell feel. 88
- Vaasa 700TC White Goose Down Pillow - 600 fill power in a 700 thread count cotton shell. The combination of high loft fill and a dense shell creates a more structured feel without synthetic firmness. 06
The Vaasa is our most popular down pillow recommendation for side sleepers with wider shoulders who want natural fill but need the pillow to hold its shape through the night.
Common Pillow Mistakes Side Sleepers Make
After helping customers find the right pillow for years, these are the mistakes we see most often.
Using a Pillow That Is Too Flat
This is by far the most common problem. Many people use the same pillow for years as it gradually loses loft. A pillow that was 5 inches thick when new may be down to 2 inches after a year or two of use. If you fold your pillow in half and it does not spring back, it is time for a new one.
Stacking Two Thin Pillows
This seems like a logical fix for a flat pillow, but it creates an unstable surface. The top pillow slides on the bottom one, and you end up with inconsistent support. One good pillow at the right height is better than two mediocre ones stacked together.
Ignoring Mattress Firmness
Your pillow and mattress work as a system. A soft mattress lets your shoulder sink deeper, reducing the gap your pillow needs to fill. A firm mattress keeps your shoulder near the surface, creating a larger gap. If you switch from a soft to a firm mattress (or vice versa), you may need a different pillow height to match.
Buying Based on Feel in the Store
Standing in a store and squeezing a pillow tells you almost nothing about how it will perform when you are lying on your side for 8 hours. If possible, buy a pillow with a trial period so you can test it at home in your actual sleeping position.
How Your Mattress Affects Your Pillow Choice
Your mattress and pillow are a team. One without the other cannot do its job properly.
| Mattress Firmness | Shoulder Sink | Ideal Pillow Loft | Why |
|---|---|---|---|
| Soft / Plush | Deep | 3 - 4 inches | Shoulder sinks in, reducing the gap to fill |
| Medium | Moderate | 4 - 5 inches | Balanced sink and support |
| Firm | Minimal | 5 - 6 inches | Shoulder stays near surface, large gap to fill |
This is why a pillow that feels perfect on one mattress may not work on another. If you are shopping for both a mattress and a pillow, buy the mattress first, sleep on it for a week, then choose the pillow based on how your body settles into the mattress.
At Mattress Miracle, we keep a selection of pillows in the showroom so you can test them on the actual mattress you are considering. It is one of the advantages of buying from a store that sells both mattresses and pillows rather than a pillow-only brand online. Check out our mattress shopping guide if you are in the market for a new mattress as well.
Try Pillows in Person in Brantford
Choosing a pillow based on a product photo is tough. At our Brantford showroom, you can lie on a mattress in your usual sleeping position and try different pillows to see which height and firmness works for you. No pressure, no time limits. Just honest advice from people who have been helping Ontario families sleep better since 1987.
When to Replace Your Side Sleeper Pillow
Pillows have a shorter lifespan than most people realize. A pillow that has lost its loft is not supporting your neck, no matter how comfortable it feels.
Replacement Guidelines by Fill Type
- Memory foam: Every 2 to 4 years
- Latex: Every 3 to 5 years
- Down/feather: Every 1 to 3 years (longer if you fluff daily)
- Down alternative: Every 1 to 2 years
- Buckwheat hulls: Replace hulls every 3 to 5 years (the casing lasts longer)
The Fold Test
Fold your pillow in half and let go. A pillow with adequate support will spring back to its original shape within a few seconds. If it stays folded or takes more than 10 seconds to unfold, it has lost its structural integrity and needs replacing.
Pillow Hygiene for Side Sleepers
Side sleepers press their face directly into the pillow for extended periods, making hygiene especially important. Use a pillow protector under your pillowcase to guard against dust mites, sweat, and skin oils. Wash the protector monthly and the pillow itself (if washable) every 3 to 6 months. Replace pillows that show yellowing, odour, or lumping that does not resolve after washing.
Frequently Asked Questions
What type of pillow is best for side sleepers?
Side sleepers generally do best with a medium-firm to firm pillow that has a loft of 4 to 6 inches. Memory foam, latex, and adjustable shredded foam pillows are popular choices because they conform to the space between your shoulder and head, keeping your spine aligned throughout the night.
How thick should a side sleeper pillow be?
Most side sleepers need a pillow that is 4 to 6 inches thick. The exact thickness depends on your shoulder width and mattress firmness. Broad-shouldered sleepers on a firm mattress may need 5 to 6 inches, while smaller-framed sleepers on a soft mattress may be comfortable with 3 to 4 inches.
Should side sleepers use a firm or soft pillow?
Medium-firm is the sweet spot for most side sleepers. A pillow that is too soft will compress under your head and fail to fill the shoulder gap. A pillow that is too firm can create pressure points on your ear and temple. Medium-firm offers enough support without excessive pressure.
Can the wrong pillow cause neck pain for side sleepers?
Yes. A pillow that is too thin, too thick, or too soft can force your neck into an unnatural angle while you sleep on your side. Over time, this leads to neck stiffness, shoulder pain, and headaches. The right pillow keeps your cervical spine in a neutral position aligned with the rest of your spine. If you wake up with regular neck pain, your pillow is the first thing to evaluate.
What is a leg pillow for side sleepers?
A leg pillow (also called a knee pillow) sits between the knees when you sleep on your side. It prevents your top leg from pulling your hip out of alignment, which reduces rotational stress on the lower spine. Useful for people with hip pain, sciatica, or general lower back discomfort. The pillow under your head and the leg pillow work as a pair to keep the full spine neutral, not just the neck and upper back.
What is the best pillow for someone who switches between side and stomach sleeping?
Combination side-and-stomach sleepers need a pillow that compresses well when face-down but lofts back up when on the side. Adjustable shredded foam, soft down, and down-alternative pillows are the most adaptable choices. Avoid solid memory foam or thick latex for combo sleepers - they hold their high-loft shape and force the neck into extension when you rotate face-down. Research published in the Journal of Manipulative and Physiological Therapeutics (Persson and Moritz, 1998) found that pillow design meaningfully affects cervical pain, with cervical-support designs reducing neck pain when alignment matched the sleeping position. The challenge for combo sleepers is that side sleeping wants 4-6 inches of loft and stomach sleeping wants under 3 inches - an adjustable pillow lets you scrunch it flatter when you flip. Talia, who handles pillow fittings at our Brantford showroom, often suggests combo sleepers test the same pillow in both positions in-store before committing - most people only try the position they sleep in most. Our MyWonder adjustable shredded memory foam pillow is the one she most often pulls for combo sleepers because the fill is genuinely removable. For more on stomach-position guidance specifically, see our best pillows for stomach sleepers guide.
Are wedge pillows or ergonomic pillows useful for side sleepers?
Both serve different purposes. A wedge pillow elevates the upper body and is most useful for side sleepers managing GERD, snoring, or post-surgical recovery - Mayo Clinic guidance on GERD specifically recommends elevating the head of the bed by 6-8 inches to reduce nighttime acid reflux. Wedge pillows are not the primary head pillow; they go under the torso, with a regular cervical support pillow on top. Our Symbia Orthopedic Wedge Pillow offers four positioning angles for that purpose. Ergonomic pillows for side sleepers are contoured pillows with a deeper centre to cradle the head and a raised neck-support roll. A 2009 study in Manual Therapy (Gordon et al.) found that contoured cervical pillows significantly improved sleep quality and reduced neck stiffness in side sleepers compared to standard rectangular pillows. Dorothy, our Sleep Specialist, often recommends customers try the ergonomic shape on a softer mattress first - the pillow's contour interacts with how far the shoulder sinks into the bed, and the right combination matters more than either piece alone. Our Somnia 4.5 Contour Pillow and Somnia 5.5 large side-sleeper version live in the wider ergonomic pillows collection alongside other side-sleeper-specific designs we keep in showroom inventory. For wedge pillow positioning specifics, see our wedge pillow positioning guide. For the broader pillow buying framework, our best pillow for side sleepers in Canada covers loft, fill, and shape across positions.
What is the best pillow for front (stomach) sleepers, and why do most pillows make it worse?
Front or stomach sleeping is the most physiologically demanding sleep position for the neck and spine - and the most misunderstood when it comes to pillow selection. When you lie on your stomach, your head is turned to one side and elevated by the pillow, creating rotation and lateral flexion in the cervical spine simultaneously. A thicker pillow in this position increases the angle of both movements, which is why most people who sleep on their front wake with neck pain when using a standard-loft pillow. The correct pillow for front sleepers is the opposite of what most pillow marketing emphasizes: the flattest, thinnest pillow possible (or no pillow at all). A front sleeper pillow should be 1 to 2 inches in loft height at most - enough to provide minimal padding for the cheek and ear but not enough to force the neck into rotation or lateral bend. Fill type matters: down and down-alternative pillows compress under head weight and work reasonably well for front sleepers; memory foam blocks maintain their shape and are generally too thick; shredded foam fills can be adjusted to remove most of the fill and may work. Research from the Journal of Manipulative and Physiological Therapeutics (2010, Gordon et al.) established in a randomized crossover trial that pillow type significantly predicted morning neck pain scores across sleep positions, with stomach sleepers specifically benefiting from the flattest pillow tested. For front sleepers who cannot break the position habit, the Canadian Physiotherapy Association recommends placing a pillow under the abdomen (not the head) to reduce lumbar extension - reducing the amount of spinal strain in the position overall. Dorothy says: "Stomach sleeping is genuinely the hardest position to accommodate with a pillow. The best advice for front sleepers is to try sleeping without any pillow for a week and see if neck pain improves - many people find it does." Browse our pillow collection for low-loft options, or our cervical pillow guide for position-specific pillow recommendations.
What is the best pillow for all-position sleepers?
All-position sleepers - those who move between back, side, and stomach throughout the night - do best with a medium-loft, medium-firm pillow that offers enough support for side sleeping without being too thick when lying on the back. Shredded memory foam pillows are particularly well-suited as they can be adjusted by adding or removing fill. Look for lofts in the 4 to 5-inch range as a starting point.
Shop This Topic at Mattress Miracle
Good picks for side sleepers at Mattress Miracle:
Or plush mattresses in our Brantford showroom.
Find Your Perfect Pillow at Mattress Miracle
We are a family-owned mattress store in Brantford, helping our community sleep better since 1987. Come try pillows in your actual sleeping position on real mattresses. Honest, no-pressure advice.
441 1/2 West Street, Brantford, Ontario
Call 519-770-0001Brad, Owner since 1987: "Every customer's situation is different. We have been helping Brantford families find the right mattress for over 37 years, and we are always happy to answer questions in person at our showroom on West Street."
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Mattress Miracle -- 441 1/2 West Street, Brantford, ON -- (519) 770-0001
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