The Sonic Boom Extra Loud Alarm Clock can wake even the heaviest sleepers. It is pretty simple: an extremely loud beeping alarm clock and a small device that attached to the underside of your bed and will vibrate you awake, also. It does allow for some volume control on the alarm, but nevertheless, this thing is loud. I like the idea of the vibration feature, but wouldn't that be similar to rocking a baby to sleep? If this $35 extra-loud alarm clock doesn't do the trick, don't forget about the Japanese extreme wake-up service.