&gt; Set up something like this on an automatic timer to simulate the sky, and I suspect a lot of our sleep issues would go away fairly quickly.<p>I had a similar hypothesis, so I built something like what you describe:<p><a href="https:&#x2F;&#x2F;github.com&#x2F;wpietri&#x2F;sunrise" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;wpietri&#x2F;sunrise</a><p>Currently I&#x27;m at only 4000 lumens or so in my main space, and I&#x27;d like it brighter. But my sleep is definitely better. I attribute it not so much to the daytime light, but to the way my apartment gradually gets dimmer and redder in the evenings.<p>I had set out to make something like a SAD lamp for my whole apartment. But as a side effect, I also basically made f.lux for my apartment, and I really like it. When evening comes, I generally have to fight to stay awake rather than fighting to go to sleep.