I am not sure why you would have sleepless nights while doing bounties unless you are constantly doing one of the time intensive ones like translation of whitepapers, content creation like writing blogs and the likes. Most other bounties require relatively low amount of time to be invested but of course also the rewards are lower
It doesn't really mind are you doing, sleepless nights only worth that if you earn a really decent amount of money, I think that you are unlikely to receive an unusual amount of money from that, so I think that killing your sleep doesn't worth that. Also usually bounties are not limited to time frame, means you can do that during day and not only on nights. Take everything in purpose- if you believe that you are spending too much time for fulfilling missions and bounties, you should make your own calculations- does it really worth it?