The Therapedic TheraWrap2 wood foundation is the standard foundation used for the Therapedic BackSense and Bravura lineup. This is a non-flexing foundation. There is a cross slats network on top, with "Buffalo Style" side support blocks. The queen size also features double head-to-toe support beams, as well as two side wall support beams to keep a stable, square geometry, while also eliminating sidewall flex. There is a fiber layer placed atop the top slat network (instead of cardboard) to help minimize noise.