Instruction: Given a question and the related document, and generate the answer to the question based on the information provided in the document.

Input:
Question: How firm is this pad? I have a bad back from sleeping on a bad mattress and need something with support, but nothing too firm...
Document: I bought two and just got them yesterday. So far, they do fit well over my mattress. What I like about these are: 1) deep pocket which holds the pad in placed well. 2) the mattress top seems firm not flimsy like some that you see at local stores.So far, it is a good deal and good quality - should these changed, I will come back for an update.
We've had this mattress pad for about a year now. It replaced a hypo-allergenic pad I got at Target that was terrible. This, however, ended up being one of the better purchases I made last year. The first night sleeping on it was a wonderful surprise - it is the perfect balance of soft and firm. My partner likes a firm bed, and I like a soft one.
I used to sleep on memory foam mattress, but after getting a king-sized bed it became too expensive to buy a king-sized foam mattress. I bought this one because I needed a cheap alternative and expected it to be uncomfortable. However, although definitely less soft than the memory foam, it is actually very good and I haven't had troubles sleeping on it. I'll recommend it to people who need a soft mattress pad for a short period of time.
I bought this as a replacement for an expensive mattress pad that I didn't like because it was too slippery on the back. This mattress pad is very thick and sturdy. The side elastic is not the yucky gauze stuff but a nice knit. It says it is for the  thicker mattresses but i'm using it on a 9" mattress and it is just fine there also!
I bought this to add some padding to the top of my bed, because I use two twin beds pushed together like a kind. For the price, this is a nice mattress pad, it's soft enough to hide the crack of the beds, but not so soft that my nice firm mattress are no longer all that firm. Also, I really like the fabric use on the sides of the pad, much better quality than many other mattress pads.
The first time I purchased this mattress pad, was back  in 2006 and it was really the only one I ever looked at. When I took it out of the package back in 2006, I knew it was a quality item. The stitching was great, the side that hugs the mattress was nylon and truly stretchy, and the top was so soft. It may not be the highest thread count, but the damask stripe makes it so much softer.
This mattress cover is really perfectly fine- it fits and seems like decent quality, but it is nothing special at all, and really not a "pad" at all, simply an adequate plain basic cover. It was not what I was looking for or expected from the reviews.
I was suspect at first because it was packed so compactly, but this is really a wonderful pad! I bought it to start using up an Amazon gift card but it was priced very competitively if not even better than ones I'd seen in the store. I am happy to recommend! one more tip...buy something else for over one penny and you can get free shipping!
I believe it was because of the polyester right underneath my fitted sheet. I missed my Newpoint mattress pad so bad!Of course the store I originally bought the very first one at no longer carried the Newpoint brand at all. I was so excited to finally find it available on Amazon! I was finally able to buy two for our king size bed and an extra for all of our kids twin size beds. I have never had any shrinking or melting issues as other reviewers have mentioned.
Do not under any circumstance put this pad in the dryer the linner will melt even on the lowest setting. It is not 100% cotton as claimed. The backing is of the poorest quality poly something? I took the chance on the cool down setting for only 15 minutes at a time and it melted in several places with only 1 washing so far. Still usable but will most likely fall apart with next washingVery Dissapointed in Montana
Answer: The mattress pad is thin. I don't see that it would provide any appreciable support. It is just a slim pad about 1/4 inch thick that sits on top of your mattress primarily to protect the mattress and secondarily to give a touch more padding for comfort, but nothing so noticeable.