The Stokke® Sleepi™ mattress cover can be hand washed at 40 °C. Make sure to stretch it to size while still wet. Do NOT use a tumble dryer. The foam filling can be hand washed at 60 °C and/or rinsed with warm water.
As for the Stokke® Sleepi™ Cocomat, the outer mattress cover is removable and machine washable at 60°C. We recommend the use of protection sheets in case of little spills or accidents. In such cases, quickly remove and wash outer covers. Inner materials dry quickly when aired and must not be machine-washed.