It's been an excellent mattress,
It's been an excellent mattress, taking my weary bones through medical school. Be warned though, the potential for a central sagging should make you reconsider your bed frame to a much more supportive one, or one that rests on the ground. I keep mine on the Zonli slat frame, which is close to the ground and very sturdy, keeping my Naturpedic well-supported and resistive :)