Obaby Foam Cot Bed Mattress The Obaby Foam Cot Bed Mattress is beautifully breathable and features dent resistant vented foam and hypo allergenic properties to provide tots with a sublimely comfortable night’s sleep. This mattress is a happily snug fit for Obaby’s comprehensive and stylish range of cots and cot beds and features a fully removable and washable cover so that the piece can be kept fresh and clean for your child’s slumber. Obaby offers a free 5 year guarantee to UK & Ireland when you register your product within 28 days. Mattress Dimensions: 120 x 60 cm