Could be the phone company does maintainace around that time and it just wigs out your tele system in your house. Lol 1:00 am here is the fucking evil hour I swear something happens every god damn night at my house from 12:30 - 1:30 the worst was when something HIT my house, I wasn't high I was perfectly awake and all of a sudden BAM sounded like a tree hit my wall (that what i thought it was) well i run outside (the whole fucking house shook it even woke up my dad) but there was nothing outside, on the roof, nothing! it had just snowed and there werent any marks relativley close to the house either. And we dont have .25 sec earthquakes in Flagstaff Arizona believe me. My best guess is it was the foundation suddenly relieving some built up pressure but shit like that always happens around that time prolly just heat cycles that cause some strange shit...