The "Alertmaster" is marketed for the hard of hearing, but judging from the number of on the market (including ones that and ), it may catch on with the general consuming public as well. This one uses "a flashing lamp, a bed shaker and vibrating personal signaler," to get one's attention, according to Uber-Review. But if that's still not enough, you can also get a " " to keep you awake 24/7.
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