Do you have friends who think it's cool to text you anytime of the night they feel like, but if you text them past 8pm they get upset.

Nope. I keep the ringer on my phone off, and I let the phone sleep when I am not actively using it. If and when I feel like looking at my calls and texts, I do, and usually delete them immediately. I do all of my emailing and DM's on my laptop...and it never makes noise.