[booklover6]

Yes there is a sleep timer.

After beginning to listen again, (offline) the cover no longer shows.

Speed goes in .2x increments from .06x to 3.0x.

At the top it says "around 14 hours left in this book."
Near the bottom it has a timer counting up the time in the current chapter. The book I got doesn't have real chapter names (i.e. Chapter 1) but I assume that would be above the count up. There is also a moving graphic at the bottom of lines (sort of like piano keys) which slowly move right to left, I guess indicating that the book is playing.

Going back to the library page makes the book stop.

There is no "download" option on the desktop library page. I doubt if there is any way to put it on an mp3 player.