Bestway Tritech indoor air mattresses provide consumers with high-quality material, construction and features for consistent sleep quality. These air mattresses are great for spare rooms, game rooms or when guests are in town. With Tritech material, these mattresses offer both comfort and dependability. By constructing the internal structure with a polyester mesh core encased in two layers of laminated PVC, it provides stretch resistance over time and minimized air loss with each use.