That depends on the pillow you choose! Most Casper pillow are available in low-loft or mid-loft. This refers to your pillow's height. Stomach and back sleepers will probably sleep soundly on a low-loft pillow, while side sleepers might feel more supported with a mid-loft Casper pillow. Casper pillows are available in classic, down, and hybrid types. Each type will feel different under your head. A foam pillow tends to be more firm and supportive — think memory foam mattresses — while down pillows are all about that airy floof factor.