Using these Casey Cotton fitted sheets is a piece of cake. Just place the sheet on your single 50cm bed, align it with the corners, and tuck it in. The tags on each side will help you get the orientation right. For cleaning, you can toss them in the washing machine on a gentle cycle with mild detergent. Avoid using bleach as it may damage the high - quality cotton. After washing, tumble dry on low heat to keep the fabric soft. If you want to iron them, set your iron to a low - medium temperature. With proper care, these sheets will stay in great shape for a long time, continuing to provide you with a comfortable and cool sleep every night.