Sleep Master 12-Inch Quick Response Foam Mattress and Platform Metal Bed Frame/Mattress Foundation

Amazon.com Price: $354.99 (as of 18/10/2017 08:27 PST- Details)

Mattress layers include: 7-Inch Quick Response foam and 5-Inch high density foam base
Steel bed frame eliminates need for a box spring
The mattress is shipped in a small box and can take up to 48 hours to fully expand from its compressed state