ClevaMama fitted sheets are made from beautifully soft jersey cotton. Designed to fit ClevaMama matresses, our sheets are + 5 cm bigger than these, with an extra deep skirt to stretch and fit perfectly to any standard size mattress. They come in a range of classic colors, white, blue, and coral to suit any nursery and the twin pack (light and dark variations) means you always have one ready for a quick change. , , The fresh cotton sheets are machine washable (40 degree ) and tumble dryer safe and not need to iron. Like all ClevaMama products, quality is at the heart of each product we make and these sheets are no different, they are designed to help your little one be more comfortable in any season, helping everyone to get a good night's sleep.