These days I am having sore back. I can barely wake up in the morning. I am thinking to upgrade my mattress. I am looking into memory foam mattress. Also called viscoelastic mattress, these mattress are made of dense,heat-sensitive material that reacts to your heat and weight and supports you evenly – that means no more pressure points and bedsores. I am looking into some models by Kurlon (which seems to the one available in India) – they are a bit expensive – but I guess it would be worth the price. If anybody have a opinion about this, please comment.