a mattress is a very personal purchase

My husband and I love this bed. I would highly recommend purchasing the adjustable base if you are going to invest in a memory foam or other expensive mattress it truly makes all the difference in the world. I tried every mattress in the store including more expensive ones and what really relieves the pressure points is the ability to change the position especially elevating the legs just slightly., the zero gravity option is amazing. I prefer an extremely soft bed as I am a former waterbed sleeper. The air beds are just too hard and traditional beds just don't help. I have not ad any problem with off gassing or smell of any kind. The bed is not hot at all. If I were to do anything I might upgrade to the next softest iComfort. . As of now I am perfectly happy. I woke up in tears from pain in my hips and back from a traditional mattress. This is no longer a problem with the iComfort. Again the adjustable base is very important., This bed is much more comfortable than even the most expensive temper mattress mainly due to the adjustable base. If you can't afford the base I really don't see the point of spending so much on any mattress. Also just for more detail. We have the split king... Hubby weighs 160 and I weigh 120. I think this matters for the level of firmness/softness needed . I have a fractured L3 and osteoporosis so I need to elevate my legs and my husband can't sleep without elevating the head of the bed. The adjustability and split king really cater to both of us.