1. When you receive the teepee: Because the teepee is made of 100% cotton, it might have a lot of folds during wrapping, packaging and shipping. In order to smooth these folds away, please unfold the teepee wide, either steam-iron it or mist-spray it, and let it stand overnight. 2. When your teepee/mat is dirty: You can pull out the poles and machine wash the fabric in cold water with mild detergent and air dry it. Because it is made of 100% cotton, it will have a little shrinkage.