You spend a third of the day with your head on a pillow—so make your pillow the best it can be. The Classic is Brooklinen's original offering; perfect for hot sleepers, this soft, cool fabric is made from 100% long-staple cotton with a 270 thread count and became the base of the brand's business after they tested over 100 other fabrics. Needless to say, this is one comfy pillowcase.