To use these sheets, simply fit the flat sheet over your king single bed. Make sure it's smooth and neatly tucked in for a comfortable sleeping surface. When it comes to washing, you can use a regular cycle with a mild detergent. Don't use bleach as it may damage the fabric. For drying, a low - heat setting in the dryer is best, or you can hang them outside to dry. This will help maintain the softness and durability of the cotton. Avoid ironing on high heat as it might cause the fabric to shrink or lose its sheen. With proper care, these sheets will serve you well for a long time.