Designed with 2 slightly different foam rolls to allow different levels of support
Air circulates through pillow while relieving any pressure points
Urethane core is hypo-allergenic and covered with a soft solid white poly/cotton blend cover
Standard foam pillow has smooth surface
Convoluted foam pillow has eggcrate-type surface
This pillow does NOT compare to the Wal-Pil-O. The Wal-Pil-O is a 4-in-1 pillow that has been clinically proven to help reduce pain. Dimensions: 23 1/2 x 14 x 4