Manufactured by Rainbow using CMHR 25 density hypo-allergenic foam, the foram case holds a coil sprung inner 5" inch deep Easy care deluxe coroquilt cover can be un zipped and machine washed at 40 Cover has built in wetness protection to keep mattress clean, yet is still fully air permeable breathable Mattress can be used on both sides amd both ends and can be used for placing baby in the ""feet to foot"" position. Foam case and spring interior gives extra support and is recommended if using a cot bed Conforms to: BS1877 and BS7177 Zipped Cover 55" x 27" 140cm x 70cm For Hygiene Reasons We are unable to accept mattresses back for exchange or refund once the packaging has been opened. This does not affect your statuary rights.