I went through 3 of the standard blue inflatables from Amazon which all had the same construction with the circular dimpled sort of construction. They all deflated gradually over time some faster than others but none lasted more than a few weeks. They all failed at these circular dimples on the top and failed badly. Decided to try the Intex one given its different construction. Bought on 12th March 2023 and its now 28th June and it is all that I have slept on and I have only once given a very quick little blast of air but other than that it hasn't needed any air added at all in over 3 months. The construction is far superior to the other types which isn't surprising as having long straight continuous baffles spreads the load more evenly. It is actually very comfortable and has been a superb buy. Feels like a quality item. It has been totally deflated on one occassion and folded up to be out the way for one day and then reflated with no deterioration in performance and staying air tight. If you are getting fed up waking up on a hard floor then give this a try. I got the King size as it was only marginally more than the single and is a really good size. That said its a king size allegedly but a double size mattress protector which is what I am sleeping on fits it snuggly and perfectly. Very good buy and still going strong and with this one I don't go to bed fearing the worst by the morning. It doesn't lose anything in the night. I wonder how long that will last. At over 3 months continuous use I think I would just buy another if it died on me now..UPDATE: It is now 10th September 2023 and I havent added any air to this since I first put up the review at the end of June. That is 6 months straight use now. I am quite amazed given some of the other reviews here where they say it has burst. Maybe they over inflated. I have left this one slightly soft and baggy to the touch but when you lie on it the gap is compressed and it feels as firm as if blown up hard. Still wondering when it will fail. Seems I got lucky with this one at least. Going to buy another as a temporary bed in a new flat and will see if that one is as good as the first one.Update: Now 1st January 2024 and been using this as my only mattress for 9 months now. Two of the internal baffles have just recently started to let go so a bulge has appeared in the middle and on one edge. Possibly my fault as maybe topped up more air when wasn't really needed and maybe over inflated. Still completely air tight though and staying up and usable no problem. Have only added a small amount of air on about 3 occasions in 9 months and that might have been too much. Still a very good buy as far as I am concerned and if it finally becomes unusable I will switch to another newer one the same and hope it is as good. Already have another unused one on standby.