Review Content Great for lower back I used to pile up pillows under my knees to take the pressure off my lower back. But this little pillow does the job much better. It fits right under my knees and keeps my legs at the perfect angle. Thanks Sharper Image! Good Good! Excellent to Help Relieve Low Back Pressure Lying Down I use this product when lying in bed reading or going to sleep at night. The foam leg wedge has provided significant relief from pressure in my lower back which sometimes results in pain. Placing it underneath the knees has had an amazing positive effect on how I sleep and feel. Excellent works much better than the pillows I have been using Super comfortable This works really nice. Its very comfortable. A must for people how sleep on there back with lower back issues. Good Product to elevate legs after a long day I use the foam leg wedge at the end of the day to elevate my legs in bed while reading. It helps to reduce swelling in the legs and feet. It is comfortable and keeps pressure off of the lower back. It is lightweight, yet solid enough to take the full weight of the legs without crushing down. The cover removes easily for washing. Good product. Excellent. Just what I needed. Helps my back. Easy to move. Good product. Just what I needed.