... stay awake to avoid dangerous 3.nap zapper ,nap alarm,driveway alarm Drive alert nap zapper alarm,quake alarm,driveway alarm ... person electronic position sensor anti-drowsiness / tiredness alarmThe drive alert 'Nap Zapper' alarm is an innovative, potentially lifesaving anti-drowsiness / ... to instantly wake you and alert your passengers. The 'Nap Zapper' alarm is not only designed for drivers, it ...