Set dim time in hue app to 45 minuttes. The slow dim decreases light on your retina and when this happens your brain releases the sleep hormone, melatonin, which gets you sleepy. Static artificial lighting doesn't do that. We know that the daylight is ever changing its brightness and color. With IFTTT you can copy your ambient daylight, if sudden drop of daylight like when clouds suddenly shades the sun. Have a good nights sleep
Explore more great ways to automate Weather Underground and Philips Hue