I used to do that when I was in upper grade. Haven't had to be closing my phone for nights since then. And that's some far time ago.
But seriously, who sends SMS in the middle of the night to ask if you're sleeping? And when you don't answer the next one comes: "Answer me you piece of shit!"
Nowadays I only get some drunken phonecalls on some saturday nights but as usual they don't matter that much since I'm usually not sleeping much on staurday nights anyways.
well those night calls aren't so bad when I have school, 'cause I go to sleep early, but the terror on vacation... when I'm wake 'till 5AM and go to sleep and some one dares to call me somewhere aroud 6AM... that's just horrible, happened twice onthis vacation 'cause I were too tired to close my phone

...and it relly is anoying if you won't awnser them ammidiedly... the relly startshouting like ''are you there?'', and I'm slow to wake... if I've waked up bout 1 hour ago, don't expectme to talk

so, I wereonthe phone like: ''aaa...'', ''haa?'' and ''maa...'' I were totaly out of it, but efter few minutes I got a hold of myself

and started asking ''that whatis the big Idea of calling somone this early?'' I hate thatkind ofwake ups... after thatI'm angry for the next 5 hours

, and those drunken calls on my vacation are funny, 'cause I can relly bully my friends with those

(if they call they call somewhere around 2AM

so I'm still awake)