Vacuumed: Mattress will come vacuum packed and, once unpacked, leave for 24 hours. Mattress: Get a 1000 pocket sprung heaven mattress. King: 5ft, 150cm x 200cm. Pocket sprung: Features 1000 individual pocket springs and featuring an added layer of 2cm cool gel for ultimate comfort. Double: 4ft6, 135cm x 190cm. 1000 Pocket Sprung Heaven Mattress | Living Social