Latex is a sustainably sourced natural material from the rubber tree, chosen for its breathable and anti-allergenic properties. A naturally breathable and anti-allergenic latex mattress with a layer of supportive pocket springs.,Dimensions: Single (3ft): H90 x W190 x D26 cm, Weight: 22 kg, Mattress spring count: 620nDouble (4ft 6in): H190 x W135 x D26 cm, Weight: 32 kg, Mattress spring count: 930nKing size (5ft): H200 x W150 x D26 cm, Weight: 37 kg, Mattress spring count: 1000nSuper king size (6ft): H200 x W180 x D26 cm, Weight: 45 kg, Mattress spring count: 1287,Item details: 3 step side stich,4 vents, Made in Great Britain,Non Regular turn mattress: Your mattress does not need flipping, however it is important that you rotate your mattress once a week for the first 3 months, then every 3 months thereafter for even fillings distribution., Natural latex and pocket springs conform expertly to the body's movements giving great medium-feel support,More information: Mattress Type:Single layer of pocket spring, Mattress Handle:Yes, Filling type:Latex Foam