I go through this every so often (actually last week was the most recent one), and I definitely agree that sleeping and spending your unproductive time learning

I go through this every so often (actually last week was the most recent one), and I definitely agree that sleeping and spending your unproductive time learning new things is useful. The only problem is while you're in the process of getting out of the slump, people who are depending on you start to get angry, which only pushes you further into the slump. The only consolation is it's much easier to profusely apologize once you're back in good spirits.