The mattress does not trap the body heat, as many people used to complain about the older versions that came out years ago. Once you get off the bed, it straightens up, and doesn't warp, bend, break or get an annoying hot-dog bun shape after a long time of repeated use.
Also the pros far outweigh the cons when you compare this product to the spring mattress.
That "smell" everyone keeps talkin about is plastic. Cause the mattress is wrapped in plastic and then put in a box. Just give it a time.
Ever wonder what a fly feels like when it lands on a stick of warm butter? Buy this mattress and you'll answer that burning question. Just put the wrapped mattress right on your bedframe and then cut the packaging open. This way, you're not fumbling with it as it's trying to expand.
One buyer said that the mattress is supposed to be comfortable, however everyday she wake up with pain on her shoulder, part of her back and arm from sleeping on the mattress.
When you first lay on the mattress it feels very comfortable and spongy like cushy. However after enough time for your body to fully sink to the foam it becomes hard.
So keep in mind - it could be individual feelings.
Overall, this mattress have over 85% positive reports from satisfied buyers. So make your choice with your head.