Sleepless nights are only for those who create lots of account and join all the bounties they see not even knowing if its is a scam or not.When I first join bounties I always sleep late at night cause I joined every bounty I see on the thread and most of those bounties are already a scam,others haven't paid me yet and some bounty payments are not worth it.Now,I make sure the project is legit with a big allocation for social media bounty and only few participants so that you can have a decent reward.I only got sleepless nights if I'm writing an article but I only have few bounties for twitter and Facebook.