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.<p>[1]: <a href="https:&#x2F;&#x2F;play.google.com&#x2F;store&#x2F;apps&#x2F;details?id=com.urbandroid.sleep" rel="nofollow">https:&#x2F;&#x2F;play.google.com&#x2F;store&#x2F;apps&#x2F;details?id=com.urbandroid...</a>