"Urban Survival" at least matches the name :)

First of all, it's not a sleeping bag, but a slightly more stable blanket, which is taped to a sack. That would be probably best described as "bivy sack" called, but without headboard. The bag, however, long enough to pull him in as rain up to over the head - always with caution: never quite pull of suffocation (unlike breathable bivy sacks).
The fact that my previous reviewers unfrozen only in this bag at 5 degrees, puts me in astonishment. Did he really slept in it all night? I have to sack one night when boof in Saxon Switzerland used times to test, at about 8 degrees with additional Sommerschlafsak inside (as you would in bivouac sacks usually does, of course, in the mountains with a warmer sleeping bag) and have frozen anyway. I would like therefore to warn, so that no one feels encouraged by the reviews, to rely on a mountain hike it and then gets into an emergency situation. Anyone who wants to rely on such Temperatures should stay in front of the serious Tour times in the garden when the weather because it can quickly become dangerous colder than you think in the living room at the desk ...
I know what I'm talking, got quite a few nights bivouac in the Alps made.
But after that you probably need a new, because you get it never matched so compactly. So it's more of a "disposable bag".
This is also my above test: I had (quite easily) located on sloping ground and woke up in the night after I broke through and slipped through the foot. If I had not located under a rain-protected rock, I would have been quite wet. So always use on level ground.

My conclusion: A nice and very lightweight, compact "gimmick" for all have it and in emergency situations better than nothing, but I think it is negligent to praise him as an emergency (sleeping) bag and to give the impression that one could In such situations, rely on.