What does it take to wake you up in the morning?

I don’t mean after you get out of bed, how long it takes, how many cups of coffee it takes, how you need a shower, etc. but what it takes to actually wake you up and get your ass out of bed. Do you just wake up when it’s time, when you need to and that’s it? Does/do your spouse, significant other, children, etc. wake you up? Do you need an alarm clock? A wake up service? What does it take? I have to set both my clock radio and set an alarm on my cell phone or I could very well oversleep. It’s kind of scary sometimes. I live in fear of sleeping through it all.