Why shouldn't you sleep more if you want to? Why should you feel under pressure to not sleep because you have to add 0s to some billionaire's account - that's exactly what my daily work is about BTW.

You can do both at the same time.

If you're actually tired enough to sleep for 15 hours a day then you need it and you'll be much more productive in the remaining 9 hours if you do it. If this condition persists more than say a couple of weeks (if you have some severe sleep debt) then see a doctor.

If you mean lying in bed awake but not really doing anything, then (a) thinking is doing something, (ii) if you're not thinking and just moping then there's a reason why you are depressed and it's not simply that you are just lazy. Right now, the political climate is a big one for a lot of people. And (3) maybe you just haven't stumbled on the right inspiration yet. It's random. Give it time. Go and do some stuff that seems kinda interesting, in the meantime.

I've been in a similar state for several months; I've done some stuff but nothing that exciting. Attending FOSDEM for the first time this year inspired me to join a hackerspace, and to read the code of some open source projects to learn how they work. Some days I stay in bed most of the day or just graze YouTube whether in bed or not (and I hate that after the fact). Some days I want to do something so I do it.

> sleeping 15 hrs a day

You know, Einstein slept a lot.