Headboard Pillow: Wedge Backrest Sizes, Fill, Covers and How to Pick One

A headboard pillow, also called a wedge or bed backrest pillow, is a large triangular cushion that sits between the mattress and the headboard or wall. It gives you a comfortable back support for reading or watching TV in bed. Sizes follow bed widths, from about 39 inches for twin to 76 inches for king in one listing.

This article is part of our bedding guide, where you can compare related options.

Sitting up in bed with a stack of regular pillows is a short-lived solution, because the pillows slide and flatten. A headboard pillow holds its shape, covers the gap behind you and fills the space between the bed and the wall. It can also protect a wall or headboard from your head.

A headboard pillow is a firm wedge cushion, usually with a removable washable cover. This guide covers sizes, depth, fill, covers, uses and care. One listing had a title that did not match its content, so verify all figures. This is not medical advice. If you have back or breathing problems, ask a doctor about sleeping and sitting positions.

Stylish bedroom setting featuring a luxurious headboard and textured pillows for a modern look

What sizes do headboard pillows come in?

Retailers commonly list twin, full, queen, king and California king lengths. One listing gives roughly 39 inches for twin, 54 inches for full, 59 inches for queen, 71 inches for California king and 76 inches for king, with a 20 inch height and an 8 inch depth. That page’s title did not match its content, so treat the figures cautiously. Another seller lists twin at 39 by 10 by 20 inches, queen at 59 by 10 by 20 and king at 75 by 10 by 20, which suggests a deeper 10 inch wedge.

Some sellers offer metric lengths from 60 centimeters up to 200 centimeters. Match the length to your bed width, since a wedge that spans the full width is the usual choice.

How tall and deep should the wedge be?

Height decides how upright you sit. A 20 inch wedge is common in listings. Depth decides how far the wedge reaches into the bed and how much space it takes. An 8 inch depth is slimmer, and a 10 inch depth gives a firmer, broader support. Choose based on how much room you have between the mattress and the headboard, and how you like to sit.

A wedge that is too tall can push you forward, and one that is too short may not support your shoulders.

What types are available?

Most are triangular wedges with a removable, washable cover. Some are sold as a backrest pillow for bed, a triangle pillow for lounging, a leg elevation pillow or a knee support cushion. Others have side pockets for a phone or remote. Longer versions, such as king or daybed sizes, can act as a couch back on a daybed.

Our upholstered headboard and bed frame with headboard guides explain headboard options, and a wedge can work with or without a headboard.

What fill is used?

Fill types vary. One listing uses pearl cotton, and another uses polyurethane foam. Foam holds its shape and supports your back, while soft fibers feel cozier but can flatten. Look for a dense foam if you want firm support. Our best cooling pillow and bamboo pillow guides explain foam and cover choices.

What about covers and care?

Removable covers make cleaning easy. Check the care label for washing instructions, and use a mild detergent and a gentle cycle. Air dry covers when the label recommends it. Wipe the foam gently, and do not soak it. A second cover lets you swap while one is in the wash.

How do you use a headboard pillow?

Place it between the mattress and the headboard or wall, with the tall side against the headboard. Add a regular pillow in front for your head. Adjust the angle until you sit comfortably. Some people lay the wedge on top of the mattress as a stand-alone backrest. Keep it flat on the bed, away from the edge, so it does not slip.

Who is it good for?

Readers, laptop users, people who watch TV in bed and anyone who likes an upright position will like it. It is also handy on a daybed or sofa. If you have a medical reason to sit upright, such as reflux or breathing problems, ask a doctor about the right angle. This is general information, not medical advice.

How do you choose one?

Match the length to your bed, pick the height and depth you prefer and check the fill. Look for a removable washable cover and, if you want it, side pockets. Read reviews about the foam holding its shape and the cover fit. Check the return policy, since comfort is personal.

What mistakes should you avoid?

Do not buy the wrong length for your bed. Do not choose a very soft fill if you want firm support. Do not skip the cover care instructions. Do not trust a listing with mismatched titles and details. And do not use a wedge as a substitute for medical advice.

How does a headboard pillow compare with an upholstered headboard?

A headboard pillow is cheaper, movable and easy to wash, and it works with any bed, even one without a headboard. An upholstered headboard is permanent and looks finished, but it costs more and is harder to clean, as our upholstered headboard guide explains. Some people use both: the headboard for style and a wedge for added back support. A wedge can also protect a wall from your head and keep a gap between the mattress and the wall closed.

Can you use one on a sofa or daybed?

Yes. Longer wedges can act as a backrest on a daybed, and shorter ones work on a sofa for reading. Check that the cover is firm enough to stay in place. A non-slip bottom helps. Match the cover color to the room so the wedge looks like part of the setup.

Further reading: the Sleep Foundation mattress information hub.

Frequently Asked Questions

What is a headboard pillow?

A triangular wedge cushion that fits between the mattress and the headboard or wall.

What sizes are available?

Lengths follow bed widths, from about 39 inches for twin to 76 inches for king in one listing.

How tall are they?

Often about 20 inches in listings, with depths of 8 to 10 inches.

Can I wash it?

Most have removable, washable covers. Check the label.

Do I still need a regular pillow?

Usually yes, for your head and neck.

Conclusion

A headboard pillow turns a bed into a comfortable place to sit and read. Pick the length that spans your bed, choose a height and depth you like and check the fill and cover.

Because listings can be inconsistent, verify sizes with the seller. A good wedge stays in place and supports your back.