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 D28 cm, Weight: 27 kg, Mattress spring count: 832nDouble (4ft 6in): H190 x W135 x D28 cm, Weight: 40 kg, Mattress spring count: 1312nKing size (5ft): H200 x W150 x D28 cm, Weight: 47 kg, Mattress spring count: 1500nSuper king size (6ft): H200 x W180 x D28 cm, Weight: 56 kg, Mattress spring count: 1836,Item details: 3 step side stich, 4 vents,Non turn mattress: Rotate your mattress once a week for the first 3 months, then once a month thereafter to ensure longevity,Made in Great Britain, Natural latex, foam and pocket springs conform expertly to the body's movements giving a supportive feel throughout the night,More information: Mattress Type:Single layer of pocket spring, Mattress Handle:Yes, Filling type:Latex Foam