Using these Casey Cotton Bed Sheets is a breeze. Just put them on your queen - sized 40cm bed. The tags on the fitted sheet will help you get the right orientation easily. For a restful sleep, make sure the sheets are smoothed out. When it comes to washing, you can use a regular cycle in your washing machine. Use a mild detergent to keep the fabric in good condition. Avoid using bleach as it can damage the cotton. After washing, tumble dry on a low - heat setting. This will help maintain the softness and durability of the sheets. Store them in a cool, dry place when not in use. This way, your sheets will last for a long time and always be ready for a great night's sleep.