[header] How to wake up with an alarm clock [title] Pick an alarm device. [step] Wind-up type alarm clocks with bells, clock radios, and even many cell phones and pagers can be set to play an alert that can wake even the deepest sleepers. [title] Choose alarm type. 
[step] Based on the device chosen above, it may be possible to select from 2 or more types of alarm signal. Many clock radios offer choice of a wake alarm consisting of a radio station broadcast (of the user's choice) or a simple buzzer.