Shock Clock is more than an alarm. Most alarms just remind you to wake up. The Shocking alarm clock actually trains you to wake up. Most shocking alarm clock users almost never get shocked. Your brain LEARNS when it’s really time to wake up. You KNOW a zap is coming. So you wake up – with enough alertness to get up and turn it off.
https://www.amazon.com/Shock-Clock-Wake-Up-Trainer/dp/B01EZ77IOY