Q : What advantage if any does memory foam7 mattress have over
foam 3? Also in a previous query you say you would not recommend foam
for heavy people. What do you regard as heavy?


A : Memory foam 7 has 4 more support zones. We would suggest
that anyone weighing in excess of 88kg considers a spring mattress
with a memory foam comfort layer rather than a foam core. To check
you need to make sure that when lying on the mattress your spine if
fully supported.