How to Choose a Pillow: Complete Guide for Every Sleep Position

13 min read | Updated October 9, 2026

Choosing a pillow comes down to one measurement and two preferences. The measurement is loft, the height a pillow holds with your head on it, matched to the gap your sleep position leaves between head and mattress. The preferences are fill and size. At Mattress Miracle, family-owned and in Brantford since 1997, you can test that gap lying down on a mattress in the store. The pillows we sell in Brantford run from $20 to $712.

A soft down or fibre pillow gives up a good part of its height under a head, while a solid latex core gives up very little. Two pillows with the same label height can therefore sit at very different heights once you lie down.

Fill changes how a pillow behaves overnight. In a 2010 trial by Gordon, Grimmer-Somers and Trott, side sleepers not being treated for neck problems spent a week on each of five pillows. On their own pillow in the baseline week, about 20% woke at least once with neck stiffness, headache or shoulder-blade and arm pain.

How Do I Choose the Right Pillow?

To choose the right pillow, make five decisions in this order, because each one narrows the next.

1. Name your main sleep position. Fit the position you wake up in most mornings. Side sleepers need the most loft, back sleepers a medium height and stomach sleepers the least.
2. Adjust for your shoulders and your mattress. Broad shoulders widen the gap, so go higher; the 5.5-inch Orthex Somnia is made for that. On a soft mattress your shoulder sinks further, so a slightly lower pillow fits; a firm mattress keeps you higher, so go up.
3. Pick the fill for feel, heat and allergies. Latex pillows hold their height and sleep cool; down is soft and mouldable; memory foam contours but runs warm.
4. Choose the size for your bed. A standard pillow is 20 x 26 inches, a queen 20 x 30 and a king 20 x 36.
5. Test it lying down before you pay. Lie in your position for a few minutes while someone looks from behind: your neck should carry on the straight line of your spine.

Our 60-day return policy takes an item back only unused, with tags and in its original packaging, and excludes sale items. A slept-on pillow counts as used, so lie down on it in the store first. Asked to describe the ideal pillow, the 55 people in Persson and Moritz's 1998 Swedish study wanted one soft and of modest height, supportive under the neck, allergy-tested and washable. Their top-rated pillow of the six held two firmer supporting cores for the natural curve of the neck. Our pillow loft guide shows the measuring method.

Pillow Height and Firmness by Sleep Position

Pillow height and firmness by sleep position follow one rule: the pillow holds your head so your neck continues the line of your spine. Too low and the head tilts down; too high and it tips up. Both strain the neck overnight, and the HealthLink BC list of neck problems counts a pillow at the wrong height, too tall or too flat, among the everyday causes. The heights below are general starting ranges, not study figures; shoulder width and mattress firmness move them.

Side Sleepers

Side sleeping has the highest pillow requirements. The shoulder lifts your head off the mattress, so a low pillow lets the head droop and strains the upper side of the neck. A firm, high-loft pillow keeps the spine straight from hips to head: broad shoulders may need the full 6 inches, narrow frames nearer 4. Our side sleeper pillow guide shows how to measure your own shoulder gap.

Back Sleepers

Back sleepers need support for the natural inward curve (lordosis) of the neck, without the chin being pushed toward the chest. A contoured memory foam or latex pillow shaped for the neck curve suits many back sleepers, while a plain fibre pillow tends to flatten under the head. The back sleeper pillow guide compares the shapes that hold up.

Stomach Sleepers

As we covered in our stomach sleeper mattress guide, stomach sleeping turns the head to one side, and a thick pillow angles the neck upward as well. HealthLink BC advises against sleeping on your stomach with your neck twisted or bent, so use a very flat, soft pillow or none. A thin pillow under the hips can ease the lower back, which our back pain mattress guide covers from the mattress side.

Combination Sleepers

Combination sleepers change position through the night, so a fixed shape that suits one position fights the others. With an adjustable pillow you take fill out or put it back until a single height suits both side and back. The MyWonder shredded memory foam pillow zips open for that, and our combination sleeper pillow guide covers the trade-offs.

Can Your Pillow Cause Neck Pain?

Your pillow can cause neck pain if it keeps your neck tilted up or down for most of the night. Research suggests the fill matters as well as the height. A 2011 laboratory trial in the Journal of Multidisciplinary Healthcare, from the same Australian team, photographed side sleepers resting on five pillows. The neck sat at a measurably different angle on the feather pillow than on latex or foam.

A pillow is rarely the whole story. HealthLink BC says most neck pain can be treated at home. It advises calling your doctor when pain has not eased in 1 or 2 days and keeps you from normal activities. Mild to moderate pain that remains after 2 weeks of home treatment also needs a doctor's check. If your neck is why you are shopping, our guide to the best pillow for neck pain compares the cervical and latex options. You can also try the cervical and ergonomic pillows in Brantford.

Neck Pain Red Flags: When to See a Doctor

Chest pain, shortness of breath or nausea alongside neck pain can be signs of a heart attack. HealthLink BC's neck pain guidance says to call 9-1-1 or other emergency services immediately. Call 9-1-1 too after a car crash, a fall or a direct blow to the spine if the person cannot move part of the body. The same goes for severe neck or back pain, or weakness, tingling or numbness in the arms or legs, after an injury like that.

Call your doctor now or get care right away if any of these happen:

• New or worse numbness in your arms, buttocks or legs
• New or worse weakness in your arms or legs
• Loss of bladder or bowel control
• Long-term neck pain that suddenly gets much worse when you have not been more active
• New or increased neck pain with a history of cancer or HIV
• Neck pain that wakes you from sleep

The Canadian Chiropractic Association keeps a directory of chiropractors across Canada for pain that spreads into your shoulders or arms, or headaches that keep coming back. Your family doctor or a physiotherapist is the other first stop.

Pillow Fill Types Compared

Pillow fill sets the feel, the heat and how long the pillow keeps its height. The replacement ranges below come from the Sleep Foundation's pillow replacement guide (updated 2023); the prices are the Mattress Miracle catalogue on October 9, 2026, with sale prices marked.

Latex has the best record in the trials above and sleeps cooler than solid memory foam. One caution, from a 2020 Cleveland Clinic article quoting chiropractor Andrew Bang: if you are allergic to latex, use memory foam instead. Down suits people who sleep cold. Highland Feather fills its down pillows in Toronto in three levels. Level 1 is softer and lower for stomach sleepers, Level 2 is medium and suits most back sleepers, and Level 3 is fuller for side sleepers. Our Highland Feather down pillow guide explains each level.

How Much Should a Good Quality Pillow Cost?

At Mattress Miracle, a good quality synthetic, memory foam or latex pillow costs $45 to $228, and goose down costs $182 to $712, with foam "cloud" pillows from $20. Price follows fill and construction more than comfort. A $50 two-pack can be the right buy for a guest room, and a $700 down pillow is wrong for a stomach sleeper. Prices checked October 9, 2026.

Many of these are sale prices, and sale items cannot be returned, so lie on a pillow before you buy it.

Standard Pillow Sizes in Canada

Standard pillow sizes in Canada follow the North American system. The standard, queen and king sizes below are the ones listed for the Highland Feather down pillows we carry.

Most sleepers use standard or queen. King pillows suit a king bed if you shift around at night, since they are less likely to slip off the edge. Our pillowcases in cotton, linen and silk all fit queen pillows, the cotton and linen ones fit king too, and the pillow sizes guide lists every size in centimetres.

Pillows for Special Needs

Neck and Shoulder Pain

Contoured memory foam or latex pillows support the neck curve for back sleepers with neck issues. Side sleepers with shoulder pain need a height that keeps weight off the lower arm. Our neck and shoulder pain guide covers the mattress half; check the red flags above first.

Allergies

The allergy evidence on fill is mixed. Down pillows are a poor choice if you are allergic to feathers. For dust mites, a 1999 study by Rains and colleagues in New Zealand put new synthetic and feather pillows side by side on 12 beds for a year. The synthetic ones ended with about three times the mite allergen (19.28 against 6.45 micrograms per gram). A 2005 letter by Purohit and colleagues found no difference.

Covers help with exposure more than symptoms. A 2023 Cleveland Clinic article with pediatric immunologist John McDonnell reports that hypoallergenic covers cut dust mite exposure. Symptoms, though, did not significantly improve in the research. Ask your doctor what to change; our pillows for asthma guide lists washable options.

Pregnancy

Body pillows or pregnancy pillows let you rest your top knee on a support while you sleep on your side. That can take some twist out of the hips and lower back, and a standard pillow between the knees is the cheaper version. Our pregnancy pillow guide compares C and U shapes. Ask your doctor or midwife about sleep position in pregnancy.

Hot Sleepers

Shredded latex, buckwheat and wool have the most airflow, solid memory foam the least. The product notes for our gel-cooled Cool Ice pillow say its cooling is most noticeable for the first 30 to 60 minutes, then you flip it. Our cooling mattress guide covers the bed underneath.

Children

Babies should sleep with no pillow at all. Health Canada's Is Your Child Safe? Sleep Time lists infant and adult pillows among the suffocation hazards to keep out of a baby's sleeping area. The American Academy of Pediatrics says to keep pillows out of a baby's sleep space through the first year, to lower the risk of sudden infant death syndrome (SIDS) and suffocation. Neither names an age for a first pillow. Our general guidance, not medical advice: wait until your child is about 2 and in a bed, then use a small, flat pillow, and ask your doctor first. Children's pillows should be smaller and lower than adult pillows, and waterproof covers are practical. The children's pillow age guide goes year by year.

Travel

A travel pillow keeps your head from dropping sideways while you sleep sitting up, which is a different job. Our travel pillow guide for flights, road trips and camping compares the types.

How Often Should You Replace Pillows?

Most pillows need replacing every 1 to 2 years, says the Sleep Foundation's advice on pillow lifespan; polyester wears out first, and memory foam and latex last longer. Replace a pillow sooner if you notice any of these signs:

• You wake up with neck stiffness or shoulder tension regularly
• The pillow does not spring back after being folded in half (for fibrefill and down)
• You can see or feel permanent lumps or flat spots
• There are yellow stains from sweat and body oils that washing does not remove
• You are constantly flipping it to find a cool side
• It smells musty even after washing

For fibre and down pillows the quickest check is to fold one in half: a pillow that stays folded instead of springing open has worn out. Foam and latex show permanent dents or crumbling instead. Highland Feather's down pillows carry a 5-year warranty, longer than the Sleep Foundation's 1 to 3 years for down, so ask what it covers. Our guide to washing every type of pillow helps a pillow last.

Sources

• Gordon SJ, Grimmer-Somers KA, Trott PH. Pillow use: the behavior of cervical stiffness, headache and scapular/arm pain. Journal of Pain Research. 2010;3:137-145. doi.org/10.2147/JPR.S10880
• Gordon SJ, Grimmer-Somers K, Trott P. Pillow use: the behaviour of cervical pain, sleep quality and pillow comfort in side sleepers. Manual Therapy. 2009;14(6):671-678. DOI: 10.1016/j.math.2009.02.006
• Gordon SJ, Grimmer-Somers KA, Trott PH. A randomized, comparative trial: does pillow type alter cervico-thoracic spinal posture when side lying? Journal of Multidisciplinary Healthcare. 2011;4:321-327. DOI: 10.2147/JMDH.S23028
• Rains N, Siebers R, Crane J, Fitzharris P. House dust mite allergen (Der p 1) accumulation on new synthetic and feather pillows. Clinical and Experimental Allergy. 1999;29(2):182-185. PubMed 10051721
• Purohit A, Shao J, Lieutier-Colas F, Pauli G, de Blay F. Evaluation of group 1 mite allergen levels in synthetic and feather pillows: absence of difference. Annals of Allergy, Asthma and Immunology. 2005;94(2):308-309. PubMed 15765751
• Persson L, Moritz U. Neck support pillows: a comparative study. Journal of Manipulative and Physiological Therapeutics. 1998;21(4):237-240. PubMed 9608378
• HealthLink BC (Government of British Columbia). Neck Pain; Neck Problems and Injuries. healthlinkbc.ca
• Health Canada. Is Your Child Safe? Sleep Time. Modified 2026-09-14. canada.ca
• American Academy of Pediatrics. How to Keep Your Sleeping Baby Safe: AAP Policy Explained. HealthyChildren.org, updated 2026-09-11.
• Cleveland Clinic. Is Your Pillow Giving You a Stiff Neck While You Sleep? (Andrew Bang, DC), 2020; Bedroom Allergens: Does Hypoallergenic Bedding Work? (John McDonnell, MD), 2023. health.clevelandclinic.org
• Sleep Foundation. How Often Should You Replace Your Pillows? Updated 2023. sleepfoundation.org
• Briones I. The "2-2-1" Rule Is the Perfect Formula for Styling Pillows on Your Bed, According to Shea McGee. Apartment Therapy, November 7, 2024. syndicated copy