Do you hate the sound of your alarm clock going off at the most pleasant moment of your rest? You should try this conceptual alarm clock that wakes you up without any sound. It works like this: you wear a wireless rubber ring with an integrated vibration device that generates a tactile alarm. By shaking your hand, the snooze function is engaged. If you still feel like snoozing a little bit, it'll take more movement each successive time, leading you to get up on time for work.