Waking up and pulling on the Women's Lightweight Fleece Crew is like diving head-first into a pile of fluffy clouds. It can be described as unreasonably soft, incredibly lightweight, and on par with a cashmere blanket. The built-in 4-way stretch moves with you as you go about your day, while the blend of viscose derived from bamboo, polyester, and spandex supplies you with impeccable warmth and next-to-skin softness. It wasn't specifically designed for sleeping, but that shouldn't stop you from giving it a try. It could be life-changing.