1. The surface of the mat is made of grass, while the underside is covered with a nonwoven fabric. Please note that the grass may have a noticeable odor, the intensity of which can vary from person to person. 2. If you are concerned about the odor, we recommend placing the mat in a shaded, wellventilated area for a day. While the smell may not completely disappear, this should help minimize it and make it more tolerable. 3. This mat is for those who prefer a firmer sleeping surface. It helps alleviate back problems and can enhance relaxation in your resting area. Keep in mind that if you are not used to hard surfaces, it may take a few nights to adjust. 4. The mat is designed for easy folding, making it convenient for storage and transport. It fits effortlessly into your closet or can be taken outside for airing. For maintenance, wipe off dust with a dry or soft cloth along the seams, then clean the surface with a damp cloth and let it dry in a wellventilated area. Avoid direct sunlight.