I am pretty detailed-oriented when it comes to buying something like a mattress, and so of course I looked at all the big brands, read reviews, read online articles, etc. Bought a mattress from a competitor and did not like it at all and sent it back - too thin and not comfortable. I had been sleeping on an expensive, traditional mattress that was just too old - and this hybrid mattress is perfect! It's nice and thick with just the right balance of support and softness. I opened it up and it seemed to expand to its full size almost right away without any odor. It is like a really luxurious hotel mattress and I ended up spending about 1/3 of what the other top online mattress companies charge. So excited it worked out! Just know it is very heavy!