Reddit reviews Hampton and Rhodes Aruba 14" Innerspring Gel Memory Foam & Pocketed Coil Pillowtop Mattress King

Hello

Ideally I'd recommend you to stretch your budget a bit, since your weight will make a more pressure thus you need durable one.

I think the memory foams will be bad options for you, especially if you tend to sleep hot. For best latex mattresses you can check this list I think Ultimate Dreams Total Latex Mattress might work for you, but it's over your budget.

So if you're looking for something under 500$ we need to have a look to innerspring models I think number 8 might also work

and the final option which is coming to my mind is H&M Aruba

Hope I was able to help