Hi John Ryan.I am 9-10 stone.It's Kaymed Therma-Phase foam and not their V85 foam which is used in medical applications.Which bed would you choose?It looks like Kaymed's top of the range beds are pillow tops.I am looking at a Kaymed bed. The Kaymed is a pillow top, has 2500 pocket springs and has around 16.7 inches of foam altogether. MATTRESS is 35cm. Cost £1649.00 for a King. The Mammoth Club SuperSoft 3000. NON Pillow top. 10cm of foam altogether. MATTRESS is 32cm depth. Cost around £2500 or even more for a King. So which bed would you choose?I am leaning towards the Kaymed is sounds better, higher quality, much cheaper and since Kaymed is regarded as a leading foam bed manufacturer in the UK.I hope to hear back from you soon.Thank you.