False memories can cause all sorts of hassle if acted upon. For example constantly reminding a friend of the 50 quid you never borrowed.
One possible solution is to use a dream ident, a soothing melody that helps you get to sleep but also a tune you associate with being asleep. It would need to be
a sound not normally heard in real life so that any associated memories can be identified as dreams. Whale song, train track with snare drum, waves crashing with triangle*.
This came up while finding the point in time I started smoking. Various memories came up, some of which I remembered remembering quite recently, like when you retell a story of an incident - "Yeah, I had a close call when a tire blew out on the mini while at college. Ah, I remember that year driving back and forth along the lane."
Now its only after remembering that anecdote for the 2nd or 3rd time that on further analysis, I'm pretty sure I changed to the mini after college. It would have been useful to pick at the memory a little more to see if there was whale song associated with it.
A dream ident could also be a crucial business tool. Whenever you come out of a meeting thinking e.g. that the project requirements sounded a little strange, try to remember if there was a train-track noise in the background as the chair was talking about the project. Yes ? Well you probably dozed off and just imagined half the stuff.
* "20 Soft Percussion Dream Idents" album sold separately.