I don't know if this has been discussed before, but here goes anyway.
Whenever I go to go sleep and log out, I see my character turn into the sleeping sprite, but my character duplicates so a standing sprite is standing directly on top of the sleeping sprite. The game then freezes but can still be exited by clicking the regular windows "X" in the top right corner. Upon restarting the game it seems to take a try or two to get myself to sleep properly. I don't know if this is just a graphical bug due to me playing on a rather terrible computer, but does it make any difference? Its making me paranoid I'm not sleeping.