The cotton quilt with filling is made of the highest quality cotton. The filling is an anti-allergic polyester fiber that ensures the right temperature, oxygen access and moisture removal, and as a result, excellent sleep comfort. We promote the fashion for "ready to use" bedding, i.e. with sewn-in filling. Currently, the market is dominated by pillowcases and separately purchased duvets and pillows. We want to change this and encourage you to wash the whole thing every time, not just the top, thus obtaining 100% purity, which is extremely important in the case of allergy sufferers. The La Millou duvet can be washed in a washing machine without compromising on quality.