

Sonic Alert Inc., of Troy, Mich., is targeting a notoriously deep-sleeping demographic — college students — with the Sonic Bomb, the Sweetheart and, just in time for Halloween, the Skull. The three clocks have alarms that ring at up to 113 decibels — somewhere between “extremely loud” and “painful” and louder than a chain saw, as classified by the American Speech-Language-Hearing Association, a professional pathologists group in Rockville, Md. If that isn’t enough, each model comes with a flashing red light and a vibrating pad to go under a pillow or mattress, where it shakes you awake.