Comfortable, but the off gassing is the worst I’ve ever encountered with a foam mattress. After following what advice we could (but we can’t take it outside) the mattress is still making me sick after 96 hours. I’m not especially vulnerable to smells or chemicals but I can’t sleep on it yet. If you’ve ever been exposed to off gassing and felt nausea, headache or dizziness, I would imagine this mattress could pose problems for you.