Mattress Forum

I need to configure a mattress for a king size murphy bed (76"x80"). The mattress can weigh no more than 90 pounds and must be less than 10" thick. I love foam mattresses, but they tend towards the heavy side. One formulation that just squeaks by is:

Base 4", 2.8 lb HD36-HQ Foam - 40 lbs 

Topper 3", 5lb Memory Foam - 53 lbs

Would this be too thin? Bases seem to be a minimum of 5" thick. Should I scrap the full foam and look for innerspring/foam mix? Any suggestions on a brand?

Best,

P