I purchased this for a spare bedroom that will be used by my 2 year old grandchild and occasional guests. I didn't want to spend a lot and chose the 8" so that it would be easy for young children to get in on. It is very firm, in my opinion. Not really plush, but it was easy to set up and good quality. After sleeping in the bed myself, I added a foam topper for added comfort. We'll have to see what my guests think.