Update 10/7/21After updating my review on 8/13/21 I started getting daily emails from shady-looking, freshly generated gmail accounts (with names like Rmtmx Yenei) where they're asking me to take my review down and offering to pay me cash. I had previously given them two stars since their customer service was good, but I really don't like to do business with companies like this.Edit/update 8/13/21After a year of use, I really liked this pad and upgraded my son from a closed-cell therm-a-rest up to this pad. In the last ten months, the two of us have had three failures. Two were leaks on the pad fabric, but in places where a patch wouldn't stay, the third failure was on the valve. It was really disappointing. When it worked, it worked well. Even for me, a heavy side-sleeper. Only after it started leaking and I found myself having to re-inflate the pad multiple times per night did I realize a design flaw.... The inflate/deflate valve is at the worst possible place. At the foot end of the pad, on the bottom. So in the middle of the night, I'd have to get off the pad, crawl to the bottom, flip, inflate. When it was holding air, valve placement was a non-issue.To Sleepingo's credit, after the initial failure, they were quick to send me a replacement. But when that replacement and my son's both failed too, they insisted on issuing a full-refund. They made me whole, so no hard feelings. I loved this pad for it's weight and size but since I want reliable gear and good sleep, it's definitely best that I find something better.I'm giving them two stars instead of one because the customer support is great.***Original post 4/2/19***I'm an Eagle Scout that took a break from camping for a few decades and am just now getting back into it with my son. I recently upgraded to a Big Agnes long/wide encampment sleeping bag. Since I'm a few years older and a few dozen pounds heavier, figured this would be a great time to upgrade from a foam ridgerest to a nice inflatable sleeping pad.My requirements:Under $100I'm a side-sleeper (220 lbs) and don't want to bottom outSmall/light enough to take backpackingDurable enough that I won't be left strandedAfter looking at amazon reviews, I narrowed it down to the Sleepingo and the Klymit Static V insulated. Not being able to see/test either, I ordered both pads with the planned to return whichever I didn't like. The Sleepingo arrived first and my first thought was....damn, this thing is paper thin, it's never going to hold up. Then I realized that it had to be this thin in order for it to be so small and light. Although thin, the fabric does seem to be very tough. I found the inflate hole, it's a simple but effective design. It's a rubber flap that is held in place by the pressure of the air inside, with a plug that covers the hole. I counted the number of breathes, I'm a fairly large dude, but it took exactly eight before I couldn't add anymore air.The Klymit Static V had a more complicated fill valve and it took 12 full breathes.The Sleepingo had the following disadvantages:Not as good R-value (insulation)Lacks name brand recognition, lifetime warranty doesn't matter if the company is goneInflated length not as advertisedThe Sleepingo had the following advantages:Lighter - 398g vs 690Longer - 72.5" vs 71.75Quicker to inflateSmaller when packedWay faster to pack up. The many chambers of the Klymit made it harder to push the air out when rolling upI'm really impressed with the Sleepingo and plan to keep it. If anything changes (good or bad), I'll update this post.