Home / Better sleep

Full body pillow: how to pick the size, shape and fill

By the Life in Good Form editors. Updated 2026-10-13.

We research products from makers' specs and health sources; we do not run hands-on tests. Links to Amazon may earn us a commission at no cost to you. How this works.

Who uses a full body pillow

The Sleep Foundation lists several groups who may benefit: side sleepers, who can use it to keep the shoulder from slouching and the knees apart; people with back pain; stomach sleepers who want to be propped partly onto their side; people recovering from surgery; and people with chronic pain. It notes exclusive back sleepers get uneven support from one. Cleveland Clinic adds that body and side pillows can help stomach sleepers stay on their side and can accommodate larger hips.

Pregnancy is the other big use, with its own needs. See full body pregnancy pillows for that.

Size

The Sleep Foundation says most body pillows measure between 48 and 54 inches long, and lists common sizes as 54 by 20 inches and 48 by 20 inches. Shorter pillows suit shorter sleepers; longer ones suit taller people or those who want it to reach from shoulder to ankle.

• Hold your arm out over it and bend your top knee onto it: both should be supported at once.
• If you plan to use it in a smaller bed, the shorter size takes less room.
• Check the cover size you will need. A 54-inch cover will not fit a 48-inch pillow neatly; see body pillow covers.

Shape

The Sleep Foundation names U, C and rectangular as the main shapes, with U and C giving fuller cradling. See the U-shaped body pillow guide for that shape.

Fill

The Sleep Foundation describes four main options:

• Memory foam or polyfoam: contours and supports. Shredded versions can be adjusted. Memory foam is often prone to trapping heat; polyfoam breathes more.
• Latex: buoyant with strong temperature regulation.
• Polyester fiber: breathable, often hypoallergenic and washable.
• Down: plush and temperature-regulating, but can go lumpy and flat without regular fluffing.

Its general pillow guide adds that polyester fiberfill tends to clump and wear out faster than other fills. If you want the pillow to hold a knee at hip height, pick shredded foam or latex over loose fiberfill. If you sleep warm, see cooling body pillows.

Weight, care and replacement

The Sleep Foundation puts a typical body pillow at 5 to 7 pounds. Many have removable, machine-washable covers; it suggests washing covers in cold water on a gentle cycle and tumble drying low or air drying. Foam is often spot-clean only, because too much moisture can damage it, and anything washed whole must dry completely. It says body pillows typically last up to about 2 years, with latex and down often lasting longer, and that most pillows in general need replacing every one to two years. Replace it when it no longer holds its shape after fluffing.

What to look for when you buy

Questions people ask

What size is a full body pillow?

The Sleep Foundation says most are 48 to 54 inches long and lists 54 by 20 and 48 by 20 inches as common sizes.

Are body pillows good for you?

They can help side sleepers keep the spine, hips and shoulders aligned, and help stomach sleepers stay on their side. They are a comfort and positioning aid, not a treatment.

How do you use a full body pillow?

Lie on your side, hug it along your front, and rest your top knee on it. You can also place it behind your back or fold it into a bolster.

How long do body pillows last?

The Sleep Foundation says up to about 2 years, with latex and down often lasting longer.

Sources

• Best Body Pillows (www.sleepfoundation.org/best-pillows/best-body-pillow), Sleep Foundation
• How to Shop for Pillows (www.sleepfoundation.org/best-pillows/how-to-shop-for-pillows), Sleep Foundation
• Best Memory Foam Pillow (www.sleepfoundation.org/best-pillows/best-memory-foam-pillow), Sleep Foundation
• Is Your Pillow Giving You a Stiff Neck While You Sleep? (health.clevelandclinic.org), Cleveland Clinic
• Back pain (nhs.uk), NHS

Sources checked 2026-10-13.