Beaming Baby's cot fitted sheets are made from the highest quality 100% chemical-free organic cotton. This fitted sheet is manufactured to GOTS exacting standards and so is beautifully soft against baby's skin, helping to prevent eczema and other skin complaints. 100% organic cotton sheets are stretchy, so can fit well over smaller and larger cot mattresses - they're also beautifully soft and comfortable for your baby. Stretchy and flexible, fitted sheets are easy and practical. Machine washable at 40 degrees. Can be tumble dried. Fits mattresses of sizes: 35cm x 78cm to 45cm x 90cm.