Oh, lord, yes, I'm with you on people walking behind you. I will slow down to a crawl so that people will pass me.

As for sleeping, my rule is that the bed MUST have its head in a corner of the wall, so I'm, I don't know, protected from two angles or something. And there is always a blanket. Even if it's just over my waist.

I think a lot of these are leftover instincts that some people can ignore better than others.