Using your Casey Cotton Fitted Sheet is a piece of cake. Just place it on your single 40cm bed, making sure the tags are in the right position. Tuck the sheet neatly under the mattress so it stays in place. For maintenance, you can machine - wash these sheets in cold water with a gentle detergent. Avoid using bleach as it can damage the fabric. After washing, tumble dry on a low - heat setting. This will help keep the sheet's softness and durability. With proper care, your Casey Cotton Fitted Sheet will serve you well for a long time.