To use these Casey cotton flat sheets, simply put them on your double bed. Make sure the corners are well - tucked for a neat look. When it comes to washing, use a gentle cycle with mild detergent. You can wash them in warm water, but avoid using bleach as it might damage the fabric. After washing, tumble dry on a low setting to keep the sheets soft. These sheets are quite durable, but try not to over - stretch them when making the bed. If you notice any stains, treat them as soon as possible. Enjoy a comfortable and restful sleep with these great sheets!