With one side for summer and the other side for winter, this 4-season mattress protector adapts to the temperatures to comfortably protect your child throughout the night! DIMENSIONS 4 sizes available: - 60 x 120 cm pocket height 15cm. - 70 x 140 cm pocket height 15cm. - 90 x 140 cm pocket height 15cm. - 90 x 190 cm pocket height 23cm. 1 summer side in terry cloth: 80% cotton, 20% polyester. 1 winter side in brushed fleece: 100% cotton. Interior waterproof layer in polyurethane. Pockets in jersey knit fabric: 100% stretch cotton. MORE INFORMATION Easy to clean: you can boil it for a more hygienic wash, as well as put it in a tumble dryer