Using these Casey Cotton flat sheets is a breeze. Just put them on your queen - sized bed like you would with any other sheets. To ensure a long - lasting life for your sheets, wash them in cold or warm water on a gentle cycle. You can use regular laundry detergent. Avoid using bleach as it may damage the cotton fabric. After washing, tumble dry on low heat. If you want them to look extra smooth, you can iron them on a low - medium setting while they're still slightly damp. With proper care, these sheets will keep you comfortable for years to come.