As I was putting this together I was thinking I was going to score this a 4. Getting to the last step and actually unpacking the mattress however dropped this significantly. The chemical smell coming off this mattress is sickening. I ran an air purifier in the room for days and it still lingered. Now I had to take it outside onto the porch to isolate the smell. If by some miracle this becomes usable I would say it is a 3 star product. Okay, but feels overpriced for what it is.