We all hate waking up in the morning. Sometimes, a regular beeping or ringing alarm clock just doesn’t cut it. We tune it out or just hit the snooze button. Engineer and inventor Simone Giertz is a really deep sleeper and knew that she had to create something that would get her out of bed for good. So she built the alarm clock slapper designed with a ridiculous rubber arm that repeatedly smacks the sleeper until they turn it off. Best idea ever.