I don't know what it was that was broken, but I found a couple of other thingies:
-It's possible to fall off the far right edge of the second map without actually 'falling'. Extending it by one tile should prevent that, and still keep the building symmetrical
-The music isn't restored properly after a 'quick' sleep on the third map
-It's possible to jump over the pit leading to the hidden area as it appears
-I didn't really like the sparkly 'puzzle'. It would work better if it were smaller, otherwise it takes too much random guesswork. A 2x4 would be less tedious, or at least a 3x3.
-Sleeping in the bed down the bottom again afterwards will re-build the pathway; I didn't check to see if it also resets the puzzle or messes that up in some way.