How do def people wake up in the moring?

well not to be mean or anything but ive been wandering how do def people wake up in the moring i know def kids parents wake them up but what if they live alone

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Answer:
They’ve a small clock that vibrates, under their pillow.

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Answer:
They make alarm systems that have flashing lights that go on and off at a set time. Bright flashing lights. These also are used for smoke detectors for deaf people, so that if a fire breaks out the lights will hopefully awaken them.

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Answer:
Light & surrounding might give natural alram after complete slip

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Answer:
put the alarm clock near the ear.