Do You Even List? - Auto updating Twitter list of people you interact with most
Sleep Cycle - Bio-alarm clock that wakes you up at optimal times based on your sleep patterns.
Listr - Listr lets you explore some of the best lists on Twitter, curated across your favorite categories.
SleepBot - SleepBot is a sleep tracking app available in Google Play and the Apple App Store.
Vicariously.io - Create Twitter lists based on the follows of other users
Sleep Time - Alarm Clock - Sleep Time provides insight into your sleep patterns. By tracking your level of movement throughout the night, Sleep Time generates customized sleep data in easy-to-read charts.