I generally don't take the time to review things but in this case, I must. This was hands down the best money I ever spent . I was diagnosed with severe RA a year ago, I was sleeping on a 15 year old mattress I couldn't afford to replace. Trying to sleep was agony, it even felt as though sleeping on my side was causing nerve damage in my hands, the more exhausted I became flip flopping all night long, the more I flared, in short I was miserable and barely functioning. I dreamed of owing a tempurpedic but on disability who can afford that? I saw the toppers read reviews and picked this 4.5 Grand Hotel with cover. The cover is EXCELLENT quality. The topper has given me the most comfort, the best rest I've ever had. Back in the day I owned a mattress that cost more than what a lot of people drove. It wasn't as good as my 15 year old mattress with this on it. Strait up. Looooooooooove it.