Need a new king mattress and looking at memory foam ones.
Ones on ebay seem awfully cheap (about £120) but noticed they dont have springs in. So are these just basically a large sponge with a memory foam topper on?
Should I be sticking with spring coil ones with a memory foam layer instead?
Whats the min thickness of the memory foam layer as have read that 1.5" is far too little.
what does the kg/m3 measurements quoted mean? Is it firmness?
Thanks for any help.