The obaby sprung interior cot bed mattress is suitable for all obaby cot beds comfort is paramount with a softly quilted cover tapered edges for extra support and shape over a high tensile coil spring unit ensuring baby can sleep soundly throughout the night the washable breathable and easy to remove cover allows the mattress to be kept in a hygienic condition for your little one features removable softly quilted breathable cover with taped edges for extra support and shape water resis