Machine washable for easy care, these sheets stay looking and feeling great, wash after wash. The Ovela Cotton Flannelette Bed Sheet Set is made of 100% pure cotton that is warm, soft, and insulating. The set includes 2 pillowcases and is machine washable for easy care. The hypoallergenic and thermoregulating properties make these sheets gentle on sensitive skin, allowing it to breathe as you sleep, while the brushed surface helps to trap air and create an insulating layer.