Sponsored content. Us Weekly receives compensation for this article as well as for purchases made when you click on a link and buy something below. Falling asleep warm. Waking up tangled in sheets. Morning arriving before your body feels ready. For many people, this isn't occasional; it's routine. Traditional sheets, especially those made from dense or lower-quality materials, tend to hold onto heat. They can also trap moisture and create an environment where odors build up more quickly between washes.