Like so many others, I was hesitant to buy a mattress online. The reviews persuaded me, and because they did, I wanted to add my own.
This mattress is great, no regrets. We have the medium firm and it feels just right. It is heavy. Set it up with another person. The packaging smell is real and while it is not overbearing or noxious, it is noticeable and sticks around for a few days. But that's minor, really.
The 14-inch is very comfortable and contours to the body as advertised. It is not too warm. It can take some searching to find sheets that fit, but like everything associated with this product, a little inconvenience is worth it. The mattress would easily sell for 2-3 times its price in a store. I was appalled at what foam mattresses from Serta and others sell for in our area. Nothing decent under $1,200, minimum. No need to spend that much. This is just as good and the best $500 you'll ever spend. We like it enough to buy the Twin version for our son. It's in shipment already.
This is a lot you can buy online that doesn't live up to expectations. This is one product that actually does. Do yourself a favor.