Finger alarm clock / Wecker

It is not necessarily to use sounds as a reminder to wake up; time might not necessarily to be sensed by seeing it. In a quiet environment such as offices or libraries, most people use alarm clocks to remind the sleep time if they want to take a short nap but don’t want to oversleep. However, it would be better if the reminder is no longer heard but felt. This design uses the alarm clock to clip a finger, and the clip will gradually increase the clipping force to remind the time when the time is up. This way, it does not disturb the people around you but effectively wakes you up.