Here is a wearable device that uses vibration to wake you up gently in the morning without disturbing your partner. Slock has a Force Sensitive Resistor to detect up to 40 pounds of weight. It won’t stop until you start walking around.
The Slock has quiet vibrating motors and is open around the heel and toes to keep you comfortable. The battery life lasts up to 5 days.[where to get it]