And right now, you can get one of Amazon's bestselling flannel sheet sets for under $40. The Ruvanti Flannel Sheets, which come in a bunch of fun patterns and colors, are made with 100 percent ...

We also loved the affordable and ultra-soft Bampure Bamboo Sheet Set, giving it a runner-up nod on our list. Most bamboo sheets available are made of bamboo viscose or bamboo rayon. You may also ...