Our Bassinet Fitted Sheets are made of 100% cotton or100% cotton FLANNELETTE fabric unless otherwise stated. The Sheet Dimensions are: Fitted Sheet Fits Oval Mattress 40cm x 76cm and are easy care, drip dry and can be tumble dried, perfect for those busy new Mum's!! All sheets are made from all new materials and come from a pet and smoke free environment. Check out our wide range of prints available, you are sure to find something just right for your special little one's nursery!