A:AnswerThey can show you when you hook them up how much battery is left. It will tell you when you first connect. But no the case has no charge % indicator.
A:AnswerI think you would find them comfortable they're not bulky or nothing in your ears so I could picture if you fell asleep they would be comfortable in your ears but I can't say for sure because I haven't fell asleep with them on
A:AnswerYou can get the blue but you have to oreder it online with bestbuy and they ship it out. Super fast i might add. Looking a 24 hours from when you purchase to when they ship!