Short answer: a lumbar support cushion can make sitting more comfortable by filling the gap between your lower back and the chair. It is not a treatment, and it works best alongside regular movement and a good setup.
This site earns a commission on qualifying Amazon purchases at no extra cost to you. See our Affiliate Disclosure and how we review products. This article is general information, not medical advice. If you have ongoing pain, numbness, or pain after an injury, see a GP or physiotherapist before buying anything.
What a lumbar cushion does
A lumbar cushion sits in the small of your back, where your lower back curves inwards. Many chairs, car seats and sofas leave a gap there, so people tend to slump. A cushion fills the gap and gives your back something to rest against.
What people commonly report
- It feels more comfortable to sit for longer, especially in an office chair or car.
- It helps them remember to sit back in the chair.
- Some find it too firm, too thick or in the wrong spot until it is adjusted.
What a lumbar cushion cannot do
- It cannot fix a medical condition or replace advice from a GP or physiotherapist.
- It cannot make up for sitting for hours without a break.
- It may not suit every chair. Some seats are too shallow for a thick cushion.
How to choose one
- Thickness: thicker is not always better. Start with a moderate thickness that suits your chair.
- Firmness: memory foam moulds to your back, and firmer foam holds its shape.
- Straps: adjustable straps keep it from sliding, and many are designed for car seats too.
- Cover: a breathable, washable cover is handy.
How to position it
Sit back in the chair and place the cushion where your lower back curves in, roughly at belt height. Adjust it up or down until you feel supported without being pushed forward. In a car, make sure it does not change how your seatbelt fits.
Options we have reviewed
See our best lumbar support cushions for a side-by-side comparison, or read individual reviews such as the ANTETOKO Memory Foam Lumbar Support Pillow, the kasney Lumbar Support Pillow and the BYMECOST Car Lumbar Support Pillow.
Frequently asked questions
Can I use a lumbar cushion and a seat cushion together?
Yes, many people do. Try them together and check you can still sit comfortably with your feet flat on the floor.
How do I know if it is in the right place?
You should feel gentle support in the curve of your lower back, without being pushed forward. If it feels uncomfortable, move it up or down a little.
Will it help with back pain?
It may make sitting more comfortable, but it is not a treatment. If you have ongoing pain, speak to a GP or physiotherapist. See also Best Desk Setup for Better Posture.