User simsalapim on Reddit created this below to help people wake up on time. He had the idea following years of struggle to get out of bed at the right time in the morning. Let's just say it's VERY effective.
In fact, I strongly believe we all need this in our lives:
[video width="720" height="404" webm="http://www.mtlblog.com/uploads/2015/11/JixhapC.webm"][/video]
For more creative inventions follow Simsalapim on Youtube.