Jawbone lets you track your caffeine intake with Up Coffee
The app will take that information and tell you how "wired" you are and let you know about what time you should expect to be able to fall asleep, based on how much caffeine is in your system. It will also tell you how long it will take for all the caffeine to be processed and leave your body, and give you a real-time tracker to watch the caffeine leaving your system.
Of course, everyone is different, so some of the data will take about 30 days before it has enough input to give reliable information. After that period of time, it will be able to tell you things like how many more steps per day you could be taking if you were to wake up 30 minutes earlier. Because really, there is nothing better for you than natural sleep.
Download: Up Coffee
Things that are NOT allowed: