Why you shouldn't use a box spring with a foam mattress - CNET
The Original Memory Foam Mattress | Casper
Amazon.com - Molblly Queen Mattress 10 Inch Memory Foam Mattress in a Box, Fiberglass Free,Breathable Bed Comfortable Mattress for Cooler Sleep Supportive & Pressure Relief, Queen Size Mattress 60" X 80" X
Mattress Foundation: Serta Bed Base, a Box Spring Alternative