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I've heard a million stories about people hiding their alarm clocks in obscure places, so they have to spend half an hour looking for them. And about how they solve all sorts of difficult problems, like differential equations and integrals. And many other things. But it always ends the same way: the person turns off the alarm clock (or removes the batteries/throws it out the window, etc.) and falls back asleep.
To wake up from an alarm clock, you simply need to go to bed on time and get a good night's sleep; otherwise, it's all pointless.