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White quilted half-moon knee bolster pillow
BedPose pickFor back sleepers · Lower back pain

Under-Knee Bolster Pillow

Takes the arch out of your lower back when you lie face up.

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Puts an end to

Lower back ache when sleeping on your back

Man sleeping on his back in bed with arms resting at his sides
Man sleeping on his back in bed with arms resting at his sides

Why we recommend it for you

Lying flat on your back with straight legs makes the lower spine arch away from the mattress. A bolster under the knees bends them slightly, which lets the lower back settle flat and takes pressure off the lumbar discs.

Key features

  • Half-moon or wedge shape
  • Around 15 to 20 cm high
  • Non-slip underside
  • Firm foam core with soft cover

What you'll notice

  • Lower back rests flat on the mattress
  • Relieves pressure on the lumbar spine
  • Also eases tired legs and swelling
Ready to sleep better?

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Questions people ask

What is the best sleeping position for lower back pain?

On your side with a pillow between your knees, or on your back with a pillow under your knees. Both keep the spine in a neutral line and take pressure off the lower back.

Is sleeping on your back good for lower back pain?

Yes, for many people, as long as a pillow under the knees keeps the lower spine from arching. Without that support, back sleeping can strain the lumbar area.

Should my mattress be firm or soft for back pain?

Research has found medium-firm mattresses often relieve back pain better than very firm ones. Too soft lets the hips sink and twist the spine.

Also good for back pain

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