You can get a slab of latex from foamoarder, which is how I got my mattress core. Honestly that alone would make a solid mattress on its own, although you'd sti

You can get a slab of latex from foamoarder, which is how I got my mattress core. Honestly that alone would make a solid mattress on its own, although you'd still want an encasement I imagine. If you want something more specific, check out the mattress underground forums. Very helpful users there.