Bought this for my son's top bunk bed-  fits great and it's fairly comfortable- even for an adult.  Perfectly fine for the top bunk that will not be used very much and/or only lighter kiddos will sleep on it when it is being used.    Despite the tags on the mattress saying so, we did not notice any odor beyond a day or so- (they say to air it out for several days before putting sheets on it).  

Pros: great value, great for kids rooms. light 
Cons: not a plush mattress