This is a set of a futon and a mattress. This is a home-use hot water circulation sauna mattress that uses sericite and artificial mineral terra to comfortably warm you. It's also called a regeneration capsule because you can take care of your body just by sleeping. Every night while you sleep, the effects of far-infrared rays promote blood flow and lymphatic drainage, and increase body temperature and immunity. It promotes the excretion of stagnant waste products and improves the body's circulation, so it is also expected to be effective for dieting and reducing swelling. I purchased it new and used it for about six months. I used it with a bed pad and sheets over the included cover of the Tellus Geyser, so it is in near-new condition. All accessories are included. Operation has been confirmed. I do not have any pets and I do not smoke. - Tellus Geyser main unit & cover - Boiler main unit - Tellus Geyser carrying bag - Water drain pump Please purchase if you understand that this is a used item. Please note that we do not accept returns or refunds.