Wikipedia
The WakeMate was an electronic device with sensors intended to be used to monitor the sleep state of the user using actigraphy. It would connect to the user's mobile phone via Bluetooth to record sleep data and to signal the phone to wake them in the lightest phase of sleep within the 20-minute window prior the desired alarm time. It also had a suite of online tools to help people maximize the efficiency of their sleep and improve their sleep quality.
The WakeMate project was delayed multiple times, which caused some backers in the project to pull out before the device had even shipped. The product eventually shipped to a limited number of backers. However, the launch was plagued by a USB charger recall and compatibility issues with Android.