●Single: 90 cm X 190 cm approx. ●Double: 137 cm X 190 cm approx. ●King: 150 cm X 200 cm approx. ●Machine washable. Non-allergenic. High Luxury Hotel Quality Item. ●Easy to care for, this polyester mattress topper is machine washable so that you can keep your topper fresh and clean without hassle. ●The toppers are 10 cm or 4" thick approx.