A hypo-allergenic quilted cover gives the Sleepyhead Spring Interior Mattress extra comfort that is zipped for easy removal and washing at 60 degrees. Features * Removable, soft quilted, fully breathable cover with taped edges for extra support and shape. * Cover is water resistant and washable at 60°c * The inner core of high tensile coil springs are surrounded by dent resistant nursery foam. * The open cell cell structure of the foam and cover allow good air movement which moderates a baby's body temperature. * This mattress is perfect for use in a cot or cot bed and is suitable for placing baby in the feet to foot position. * This mattress meets BS7177:2008 and BS1877 Part 10:1997 * This mattress is manufactured WITHOUT the use of Antimony, Phosphorus or Arsenic based fire retardant treatments.