A hint that you might have stayed in a hotel too many times

You ring the late-night operator to place a wake-up call for eight hours from that time.  After you tell her when you want the call to occur, she says, "Sleep in!  Nice.  You never get to sleep that much."

Yup, that happened.

Pro tip:  I didn't get to sleep that long.  I just placed the call earlier than usual.