I bought this mattress because it was cheap and had decent reviews. I wasn't expecting anything super nice, just needed guest beds.This is basically a bunch of coils with a thin layer of fabric. You can feel every coil when you lay down and I'd honestly rather sleep on the ground. So initially I was upset because I was guaranteed delivery today (December 16) and my delivery date kept changing- but suddenly it was on my doorstep so that made me happy. Another thing that worried me we’re other reviews that the mattress was not 6 inches.When I got the package, I opened it and cut the plastic off of the mattress and it immediately started to rise. I left it alone for about an hour and when I came back I measured it, and fortunately mine measured at 6 inches! I laid on the matress myself and it was comfy and firm. It fit my sons bed perfectly, it’s a good bang for your buck. Although I started off with an uneasy feeling about this mattress it really delivered and I am satisfied now. comes in a box rolled and vacuum sealed.Easy handling and opening.Mattress is 6" and PERFECT fit for bunk beds.Springs are a tad noticeable but with pad on you don't feel them at all (at least thats what kids say).I would NOT buy for adults as I can feel them even with pad.Comes with 10 year warranty.All being said its a great value. Comfortable matress! Great for the price! Very satisfied with this purchase. Baby boy now has a big boy bed. I slept in it last night to test it out. I'm 150lbs and bed was comfortable for me so I know it will be great for my 5 year old. Not bad The mattress arrived in a box, rolled and suction packed. I was a little concerned at the quality, but once the packaging was released, it came to life and is a very comfortable mattress for only 6 inches. I am thinking about buying another one, to have as a spare! My husband and I love this bed. It is very firm but comfortable. We ended up adding a small foam pad to it, but it was great even without it. (my husband likes a little softer than I do.) I would recommend this mattress to everyone. Just a heads up. Make sure you let it sit for at least a day before you use it so it can form. We opened it and let it sit for several days then we moved it to our new room.