There&#x27;s also <a href="http:&#x2F;&#x2F;aeon.co&#x2F;magazine&#x2F;psychology&#x2F;why-broken-sleep-is-a-golden-time-for-creativity&#x2F;" rel="nofollow">http:&#x2F;&#x2F;aeon.co&#x2F;magazine&#x2F;psychology&#x2F;why-broken-sleep-is-a-gol...</a> which was posted a while back on HN and which I found quite interesting.