Doesn't work as is. Will not stay under mattress. Rig it to something longer and heavier.
358089
Doesn't stay between mattress. You will have to rig it to a thin board that extends it's length to keep in place.
1420330
Yeah, these things don't work.  I bought 3, and realized I should have tested one first.  There isn't enough space between the top and bottom bars to hang shirts or pants without them hitting the bar.  And when you put the bottom bar to it's lowest position you can't hang anything from it or it drags the floor.
4226045
The piece of wood going across the frame to hold the mattress down keeps falling. Very poorly and cheaply designed. Avoid this item not worth it and dangerous. It will be on its way to return this to Amazon.
1037710
Design poor.  Had to put plywood under mattress to keep it from falling thru rails.
Don't like it at all.
Feel stuck with it.
4562262
it doesn't work.  used it twice on the spot and it still didn't get it up.  doesn't do what it says.
3516955
Flimsy material.  Doesn't stay on the mattress despite being extra long, they're not long enough.
4557362
Does not work properly. It gets stuck easy or will just float around rather than staying on the floor or walls.
1453373
Not compact.  Doesn't inflate as much as pictured no matter how long you leave it to self-inflate.  2" (5cm)...?  Pfft!  NOT!!!  Fact is, if you take two beach towels and lay one atop the other ... you'd get just about the same result as far as thickness goes.  If you're big and tall and/or an old timer and/or someone with back issues, then forget about it!  Get yourself a standard inflatable camping mattress and bring a pillow from home.  This item is certainly not worth the $39 price tag.  Very, very disappointed!
3591461
The pieces do not ft together well.  There are gaps in the molding.  We have a less than 12" mattress and the bed will not close all the way.  Very unhappy with this product.
1596248
Didn't work like I thought it would. Did stay under the ladder. Kept finding it in different places in my pool.
3181387
I don't understand the huge amount of positive removes. How can they all be wrong? SO wrong! Maybe they've changed the manufacturer and made shortcuts?
Cons:
Makes a bit of noise.
Does not fit a brand new 10" queen mattress- too baggy and creates bumps.
Changes the feel of the mattress.

Those are huge faults! Now I have to take time out of the holidays to return this.
I rely on amazon reviews for everything I buy. Come on people! Speak up if this
not working for you. It will save us time and money.
1596506
Disappointing.  The guide or rest does not stay in position regardless of how tight you screw it down.
4106786
Terrible. Every time you make the bed you have to put it in place. The piece that "holds it in place" is a limp piece of elastic. Not worth your time or money.
1972351
Fitted sheet slides off the mattress every night. Have to constantly pull and retuck under mattress.
4410113
Difficult to sleep on. The air Is higher is the middle and you just roll off.
Did not work for me or anyone else that tried it!
2378553
Unfortunately does not stay in place. Returned one kept other because I used it, but it suits no purpose.
4070902
This is our second inflatable bed, and we bought it after reading the respectable reviews. Unfortunately, we suffer from the same problem that others have reported- the bed will not stay inflated. A very slow leak exists through the inflation mechanism that is just enough to prevent more than about 4 hours of continuous sleep. I've tried different valve positions as suggested by other reviewers. Also unfortunately, we use this mattress only infrequently when we have extra guests, so I am not outside the return period. Save yourself the $70 and buy one that actually works.