For what these cost, you hope that these are "the whole package" including comfort. If you're like me, most cots have been an uncomfortable experience that are only marginally better than sleeping on a floor with a shoe as your pillow.Well, let me tell you that these ARE the total package, comfort and all, and are totally worth the cost.We purchased these to use in a Chevy Express van (135 inch wheelbase, 12 passenger version). Our idea is that our passenger van can become an RV as needed, or cargo van, or back to passenger van as needed.We opted for the large size to keep the beds a little narrower so as to allow more space for our other gear (i.e cooking set up, water system, etc).In our RV setup, we keep one bench seat installed to bring our kiddo along. That bench seat also doubles as his bed at night. Thus, the disc-o-bed is for us, the parents.Used as side-by-side, the beds fit perfectly in the van and we love the storage ability under the beds. However, when stacked as a bunk, the rear-slant angle of the van's bench seat pushes the entire bed system back about 2.5 inches, which requires centering the bunks to get the rear doors to close. Since we really want the beds "against the side wall," I ended up needing to shorten the bed frame by 1.5 inches to allow the rear barn doors to close without use of force. This modification wasn't completely necessary, but I didn't like forcing the van doors shut.1.5 inches is as much as you can shorten without putting the bed fabric in contact with the tabs that hold the plastic discs in place (as included in my picutres). It was also just enough to where thevan doors now close normally.If you have a Chevy Express van (135 inch, with one bench seat installed) like me, this "shortened" modification is not necessary and you can use the unit as it comes out of the box if:1) you're using the beds as single level, side-by-side. This is because the rear-facing angle of the bench seat contacts the bed near the top of the bunk frame and forces the set up back about 2 inches2) you set the bunks in the middle of the van instead of off to the side as I showed in my picture.3) you have the 155 inch wheelbase van which has a longer interior, at which point you can even use the 2XL version of this bed for extra lengthOverall, I think the beds are top grade quality and was very impressed, as follows:1) Very sturdy. Easy to see that the frame is thick, strong metal that is designed to last many years. I am 5"11", 185lbs and felt the bed didn't even know i was there. There is absolutely no flimsiness in the design of the bed frame.2) No creaking noises. Many typical cots are noisy when getting in/out, or rolling about during the night. This disc-o-bed is completely silent which we love.3) Very comfortable, even in "large" size. Many people are concerned that the large may be too narrow for comfort. My wife and i found that we had 3-4 inches on either side before hitting the edge of the bed, which is plenty good for us. For comparative purposes, I am 5'11" and wear a 34 inch waist. My wife is 5'7" and average build. Overall, we didn't find ourselves wanting the XL size at all.Aside from width comfort, the other factor is "cushion and support." Here too we give strong marks. The amount of tension and stretch from the fabric material results in a very comfortable bed, so much so that both my wife and I felt that no camping/sleeping pad is not necessary (except maybe for insulation purposes during colder weather).4) The included organizer shelf attachments add quite a bit of usable storage space in a van setup. We were pleasantly surprised to learn that the organizer has one huge pocket that is the entire size of the organizer, PLUS added storage pockets, PLUS cubby pockets for drinks5) Easier to store than typical folding cots, due to their shape when stores. In my supplied picture, you see one one disc-o-bed occupies half the space of a typical single person cot.You will find many reviews criticizing the weight of this kit. It is indeed on the heavy side, but I have yet to see a backpacker that lugs around ANY type of sleeping cot. Point is, any type of cot already is a clear sign that you're using your a vehicle to transport your camping gear, and likely wouldn't veer too far from said vehicle for your camping activities. At that point, what you are paying for is a MUCH sturdier, more comfortable, quiter, and space saving system that will undeniably increase your sleep quality while camping.In conclusion, the unit is so good and comfy that you'll feel proud to let friends and relatives sleep on it if/when they stay over at your house for the holidays.