I'm in the midst of reading this book:
And last night Amory, the main character, is listening to his friend Tom at Princeton talking about how to deal with ghosts when they're in your bedroom ("If you use any direction, a ghost can never get you in a bedroom") and I was very surprised to discover that the theories of dealing with ghosts under your bed in 1920 are exactly the same as mine today!
While you can get rid of a ghost in your bedroom by closing your eyes, turning on all the lights, and waving a stick around, "the bed requires different tactics... Of course you never look. You stand in the middle of the floor and before he knows what you're going to do make a sudden leap for the bed-- never walk near the bed; to a ghost your ankle is your most vulnerable part-- once in bed, you're safe; he may lie around under the bed all night, but you're safe as daylight. If you still have doubts pull the blanket over your head."
Very wise advice indeed.