It took me a while to figure out what this was. When I finally realised, I thought it was really funny and kinda clever? I can see the appeal and how it could work on mobile, with notifications etc. I think that this game would kinda benefit from 'fake multiplayer' though. Obviously, you can't defend while you're asleep though.
We couldn't really show it on the gong show, unfortunately, but, I think this is a funny and interesting idea that I hope gets explored more in some way.