Meet Thim: a smart wearable device that stays around your finger and trains your body to sleep faster. It detects when you have fallen asleep and wakes you up after 3 minutes, so you can fall asleep all over again. Through this process, your body is trained to fall asleep faster.
The device also has a sleep tracker and power nap module. It wakes you up from your nap at the right time to keep you energized. Thim is compatible with iOS and Android devices.