This foam free mattress combines mini pocket springs and an airstream i fibre core to create a safe and comfortable sleep environment the vertically lapped i fibre is safer for babies and fully recyclable the mini pocket springs support your babys body while the breathable microquilted cover allows baby to breathe freely while they sleep its dual sided design allows you to offer a cooler light quilted side for summer and is simply turned for a warmer side for winter treated with allergy uk