Very happy with the twin mattress.I am older with chronic back problems so the mattress was a little soft for me. However, I gave it to my daughter who is young and healthy and she loves it!The bed arrived in the box which was torn and the UPS driver said he made a note of. I was really worried that the mattress may have been damaged, but the plastic it came in was super thick and no damage to the mattress itself occurred. Before releasing it from the packaging I made sure to place it on the platform I also bought from Amazon and had arrived a few days earlier. Something I was surprised with was the company provided a little razor blade in a piece of plastic that was shaped to be able to cut thoroughly through the tough plastic without the chance of damaging the mattress itself. The mattress only took about 2-3 hours to completely get to the advertised thickness of 12 inches. After reading some of the reviews before ordering, I was a little worried that it would not reach the full size, but I had no issues. Having bought the bed for a guest bedroom, I haven't slept on it, but laying on it has made me want to switch it out with mine and my husband's king size bed! This bed feels incredibly comfortable, but I guess the true test will be when our guest comes and uses it over spring break! All in all, this mattress was a heck of a deal, delivered right to the door and as advertised.Buen colchónThis mattress is replacing a pair of cheap twin size mattresses I had been sleeping on to fit my king bedframe. I am SO IMPRESSED by the quality of this mattress. You never know when you order online but this is a STEAL for the price!!! It came shrink wrapped in a box and was delivered to my front door which is so much easier than buying a king size mattress in a store, paying for delivery or borrowing a truck and trying to wrestle it from a parking lot into a tiny apartment (the box fit through my front door without having to try to bend a king size mattress through it!) I opened the box, it slid out and all I had to do was remove the shrink wrap and it expanded perfectly in minutes. There was absolutely no smell (which can happen with foam products) and it was ready to put on the bedframe right away. Even the covering is high quality with a zipper for removal in case it needs laundered (this was really impressive). The name was embroidered, not printed on the end of the bed :) (I liked that detail). As you can see from my photos, the mattress forms to my hands when I push down which I initially thought might be too soft. But when I LAID on the bed I realized that only the top layer was soft like that and the support was out of this world. I've never slept on a bed that supported my whole body the way this one does. I'm an actress and dancer and have to be at the top of my game everyday even after a long day of filming and I can honestly say I've never slept better and felt more rested then when I sleep in my new bed. I've even encouraged my parents to replace their $1000+ old memory foam mattress with one of these. They've never been quite happy with theirs and have been looking for a new one. BEST BUY EVER! Thank you!!!Please note: there are some other reviews that mention the mattress being too thin or lopsided. I did not have that experience with mine. It was the full 12" depth and even with 15 minutes of unboxing. I slept on it within 2 hours of unboxing and it was perfect.High quality. So comfortable, pain relief. Definitely buy it!The problem I had was with the picture used to advertise the mattress. It is a deeper mattress than 6 inches which can be difficult for some people to visualize. Using a 10 inch or 12 inch mattress to advertise a 6 inch mattress is false advertising in my books.In terms of the mattress itself, I love it. It took a while to adjust due to the firmness but boy oh hoy, I sleep well and no pain point pressure issues. What a pleasant change.Depending on bedframe, you may need a box spring under heath to get to proper height.I wish I could physically take pictures and a video to show how much this product has improved my life. I am not capable because I am 100% disabled. Many thanks to the manufacturer and especially AMAZON for providing me with a significantly improved quality of life with this product.