Ok, I just have to ask this. Not trying to be a jerk or anything, but isn't the act of you pulling back the covers, crawling into bed, and then covering up after she's already asleep more of a disturbance to her if she's that light of a sleeper, vs a tiny little vibration from a phone? Are you sure it's the phone that's reason you are getting **** every night? I find it very hard to believe that if you could silence the slight vibration, your problem would be solved.
Just making a general observation...
It's funny, some people just wake up instantly when they hear certain types of noises, I guess. With phone stuff, she wakes up instantly, but when I'm pulling back the covers and such, she tends not to wake up then.
I'm guessing that parents would have to wake up when they hear babies crying, but could sleep through a car alarm 😀
I just find it strange that this "problem" exists on the iPhone - but doesn't on my iPad!