Say goodbye to split ends! Sleeping with a satin cap means no more split ends. It protects your hair from dryness caused by friction between your hair and moisture-absorbing materials such as cotton. This also helps to reduce breakage, matted, tangles and thinning hair. Satin helps hair hydrated! Cotton pillows are known to dry out hair from root to tips; satin helps keep it moisturized. If you have curly or wavy hair, you know that sleep can cause a serious mess! Sleeping on satin helps keep the curls’ shape and style without causing kinks and bumps. It also keeps hair from getting frizzy and poofy. If you’re trying to grow your hair out but having a difficult time, one of the problems may be that your hair is breaking while you sleep.