The mattress is about an inch shorter than standard and fits perfectly on my antique bed frame. It feels bigger than my spring mattress because you can lay all the way to the edge. My husband and I don't sink to the middle like we did on our spring mattress and I am not waking up with kinks in my back and legs anymore. I would like for the mattress cover to fit better because it get wrinkles in it and it is very hard to adjust without unmaking the bed. Still glad we got it. It does need a lot of time to air out the foam smell.