I’ve tried dozens of sleeping solutions for out on the trail or camping anywhere from very expensive memory foam mattresses to cheap inflatable pads to mattress toppers on cots, etc. I always avoided the deep sleep for a long time because I assumed it was just another bouncy air mattress, but it’s not that at all! The core is memory foam and it’s thick too. I’m a big guy about 300 pounds and I could never find something that was comfortable enough to support me because I’m also a side sleeper, but with the deep sleep, all I have to do is open the air valve, let it self inflate, and close the valve. I don’t have to add or remove any extra air pressure And I can sleep on my side all night long with no sore hips and shoulders in the morning, oh and of course it fits the back of my bronco perfectly. My only complaint is I should’ve done this earlier.! Seriously just get one the value you get in Comfort for the price is well worth it!