To use these Casey cotton flat sheets, simply put them on your single bed. For a great night's sleep, make sure the sheet lies flat on the mattress. When it's time to wash, you can use a regular cycle in your washing machine with mild detergent. Don't use bleach as it can damage the fabric. Wash them in warm water, and then tumble dry on a low - heat setting. This will help keep the sheets soft and maintain their durability. Avoid over - drying as it might cause shrinkage. With proper care, these sheets will serve you well for a long time.