I don’t know why there are so many positive reviews lol. Maybe I received a defective mattress?  But i have had the mattress for a week and it is not a firm mattress and not comfortable. I have had a bad kink in my neck and sore back since sleeping on this mattress.  
Set up was easy, but the mattress does not have any handles, so lifting the mattress or moving will be a chore. 
To further my complaint, it has a strong chemical odour with a notice indicating the materials may cause cancer. Quite concerning. All my other mattresses I’ve purchased never had that strong odour. 
 I know it was an inexpensive mattress, and the quality really reflects the price!  Like they say, you get what you pay for.  Save the money for a better quality mattress.