Obaby's fiber mattress is hypoallergenic, fully breathable, firm, and comfortable. The inner fiber pad is made from 100% polyester which is durable, quick-drying, and easy to clean. The cover is made of plain polypropylene which has excellent insulative properties offering a comfortable night’s sleep. The mattress measures 120 x 60cm, a perfect fit for Obaby's comprehensive and stylish range of cots and mini cot beds, and features a fully removable cover that is washable at 60ºC so that the mattress can be kept fresh and clean for your child's slumber. All Obaby mattresses are designed and manufactured to comply with the General Product Safety Regulations 2005 and UK Furniture and Furnishings (Fire Safety) Regulations 1988/1989, 1993, and 2010. Crib, cot, and cot bed mattresses are tested to BS 7177:2008+A1:2011 and BS EN16890:2017.