The Boost 1000 Pocket Spring Mattress, exclusive to OAT Home, features 1000 individually responsive pocket springs that offer tailored support and help reduce partner disturbance. At 18cm deep, it’s encapsulated in layers of supportive foam and topped with a layer of comfort foam for a balanced medium firmness—neither too soft nor too firm. The hypo-allergenic, anti-allergy soft-touch cover promotes a healthier sleep. Vacuum roll packed for convenience, it’s easier to transport, fits through tight spaces, and quickly expands to full size upon opening. Made right here in Great Britain!Dimensions: Depth 18cm Standard UK Single (3ft) - Width 90cm Length 190cm Standard UK Small Double (4ft) - Width 120cm Length 190cm Standard UK Double (4ft6) - Width 135cm Length 190cm Standard UK King Size (5ft) - Width 150cm Length 200cm.