you guys are sad... listen, you're right, I just noticed that every surface I tried it on had suddenly wrapped in the exact same way. now that I think about it, every single surface in my house has wraped overnight; the only thing that seems to have stayed flat is my phone really, which is why I noticed the wobble.
that makes perfect sense, thanks for helping me figuring it out!
Depends on what you used to wrap it.
Seriously, dude, you came here to report a non-visible bend after doing daily (and I'm betting you may have done it more than once daily) tests on the phone. Taking off the case each time. Who is to say that wrestling the case on and off constantly didn't cause some sort of warp in the glass or whatever?
Just relax.