What a great bed in a box! We bought this for our daughter and she absolutely loves it!! That say’s a lot coming from a platform bed with a traditional low profile box spring and a traditional mattress.
I read reviewsresearched this mattress before purchasing it. Upon my research A lot of reviews stated that it had an usually smell, I didn’t find that to be true.. We allowed it to sit out for 5 or 6 days before put in her room, I slept on it my husband slept on it and we have yet to smell anything unusual. The best thing about this mattress is that “the slip cover comes off and it is washable ppl, WASHABLE”.. 
Apologies I don’t have a picture of the mattress without sheets attached, it is exactly as pictured.