There are plenty of smartphone apps that do this as well. I use Sleep as Android [1] and my anecdotal opinion is that it helps me wake up in a better mood and w

There are plenty of smartphone apps that do this as well. I use Sleep as Android [1] and my anecdotal opinion is that it helps me wake up in a better mood and without trouble keeping awake. [1]: https://play.google.com/store/apps/details?id=com.urbandroid.sleep https://play.google.com/store/apps/details?id=com.urbandroid...