We've been so happy with our new mattress. The price was so affordable, we were able to upgrade to a king. The mattress is comfortable & we felt good about the 100 night trial & return policy.
The only con is it is so light that it slides easily when making the bed. A velcro patch on the bottom and a another patch to stick to the support base might work.
I can tell you that I have had the best 3 nights sleep since we first used the new mattress Sunday night. I cannot remember the last time I have slept so well. We are in love!
Feet are always warm. The mattress appears to give where necessary according to weight and then resume structure. If this keeps up, the design will have dealt with the biggest problem in mattresses - the sag.