BABYBJORN Travel Lite Portable Bed Fitted Sheet- Natural is a fitted sheet made from organic cotton that is smooth and comfy for baby to sleep on. Because the sheet has been tailored to fit the mattress, it remains stretched and in place. The sheet is easy to take off and put on and should be machine-washed, hot (60C). Approved in accordance with Oeko-Tex Standard 100, class 1. This means that it is guaranteed free from hazardous substances, not dangerous for children's sensitive skin and will not, for example, trigger allergies. For use with the mattress in BABYBJORN Travel Crib Light .