I need help

I needed to be over at Bethel this morning at 8:30 for soundcheck and rehearsal for chapel, so last night I set the alarm for 7:25 thinking that'd be enough time to get cleaned up and grab breakfast before I had to be there. Well I finally rolled into conciousness this morning at about 8:10. I wasn't late, but I was little upset that I couldn't shower or eat now. I looked at my alarm clock and phone and thought "Why didn't my alarms go off?" I was just a little confused on how it would be possible for them both to not go off. Isn't that the whole point of a back up. I lay there thinking about it, and sat up and started to get dressed before I realized that THEY WERE GOING OFF!!! Full volume, right next to my head, they were both blasting away. I couldn't believe it. Is it physically possible to tune something out that much? I mean at that point they had been going off for almost an hour! You'd think by that point my upstairs/downstairs neighbors would come ponding on my door at least by then. I mean that's just scary. It's not like I'm tuning out one rhythmic sound. We're talking about two conflicting, shrill noises at different speeds and different pitches. Do I need to get a bed that just flips you out of it at the appointed time in the morning? Do they even make those? Help