I am a heavy, 5ft 9 lady and mostly sleep on my front, occasionally on my side. I have tried the Otty mattress and did not like the feeing of hotness and falling into it. Turning became difficult, as I felt it was an effort to move out of the dip being created. I like a firm mattress but my budget does not extend to your Resilience range. My husband is over 6ft but skinny, and he can sleep on anything, anywhere, so it is mainly me that is the issue. I need a king size bed which is under £1000 and prepared to buy an outlet mattress. Thanks for any help you can give.