Just delivered, inflated quickly and was a true 18" high. Barely 60" wide, barely 80" long, but with a great raised edge, should be fine. Now, leaving inflated for a few days to see if it holds air.
Will further review.
These air beds are dicey. Often misrepresented, so after some trial and error, landed on this one for it's 2 year warranty coverage. The other reviews were mixed, but for the current Black Friday price, maybe it will be worth it.
Okay, it has been over a day, just checked, still full of air, no leakage so far.

Used for extra guest bed over the holiday visit. Impressed with the self contained pump and the extra height of the mattress. Supported approx 300 lb comfortably. Would purchase again and recommend to others

We bought this for an extra sleepover bed. It works well. Blows up quickly and stays inflated. It's comfy too.

Update: The seam I had patched ripped open further, so I added another patch, then another patch etc, etc. By the time half of the circular seam was patched, it was ripping easier. Then I threw in the towel and bought a foam mattress. I looked inside to check out the design, and those circular seams are defintely the weak spot. There is a loop of tough clear plastic the joins the top circular pockets to the bottom, this is why they eventually tear apart. When you move around an put more weight on one spot, the tethers yank harder on those circular patches. Too bad they did not make those circular areas stronger, it was a comfortable air mattress.

I've been using my Queen sized Olarhike air mattress for just over 2 months now. I bought this air mattress in hopes it would be more durable than the last one I bought, an 'Outbound' brand from Canadian Tire. It's more durable, but not by much. This one developed a small rip along one of the circular pocket coil seams on the top surface. Other reviewers here have posted pictures of this. To fix this, you'll wan't to get a bicycle tire patch kit, the kind that uses glue and a rubber patch, not the sticker type. I used my Park Tool patch kit (comes in a small blue box). I used sand paper to shave off most of the felt surface around seam where the rip developed. After applying glue, I just held the patch in place for about 5 minutes before peeling off its clear plastic protective sheet. Peeling off that clear plastic from the rubber patch will be the trickiest part...work slowly from one edge until you peel it off. Then work the patch down with your finger for another 5 min. These patches work very well, and I was able to patch my mattress without fully defelating. If you can apply the bicycle tire patch while the mattress is mostly inflated, then it will allow the patch to assume a more proper shape. Another tip if, you decide to buy this mattress, is don't try to inflate the mattress until the top is hard like a volleyball lol, this would put extra stress on those pocket coil seams. Leave a little bit of slack on the top. Firm, but not super tight.
Oustide the durability issues, this mattress is very comfortable. I'm 6' tall and 210lbs, and this mattress impressed me in how in maintained a firm comfortable surface. Most air mattress' don't have any kind of baffle system inside them, they are just one big bag. The advantage of this one is, when it loses a bit of air through normal seepage, the air coils do a good job of equalizing the air pressure, keeping the mattress level as you sleep. I kept my mattress inflated all the time, and after the first two weeks, it hardly lost any pressure through normal seepage. I only needed to turn the pump on for about 20-30sec every week to maintain it. When you first inflate the mattress, you'll need to give it some time for the air pressure to equalize (maybe an hour). Also, if you buy this mattress, it will stink like a chemical solvent (acetone like) for the first 2 or 3 days, so leave in a well ventalated area for the first few days. The air pump works very well, and it only takes a few minutes to inflate. You don't need the pump to deflate, which is nice, as that can spare the motor/pump extra wear. The hieght of the mattress is nice when getting up in the morning, as you're not so close to the floor.

Would I recoomend this mattress?: Yes - But only if you are willing to use a patch kit. If you can accept the fact it will eventually develop some holes and you'll need to patch them up, then your good to go. I would recommend this over others based on the internal pocket coils alone! The pocket coils keep the mattress fairly level, even when you lose a bit of air. The built in pump works great and the hieght of the mattress makes it a winner. If you are not into the idea of patching it several times (I've only patched mine once so far), then I'd suggest getting a foam mattress, because almost all air mattress eventually will leak and need to be patched.
I'm using mine full time because I lost my last bed from smoke damage (fire next door to me), so I expect to be patching mine up once or twice every few months.

This was my first time purchasing an air mattress and let me say it did not disappoint. The quality and durability is awesome. Long story short I've been sleeping on this mattress for 5 months now and the inflation is great. I did need to put on a mattress topper because the comfort is so so. I understand an air mattress is for short term sleeping yet here we are and it hasn't let me down. Literally lol.