I'm adding this to my list of Things Nobody Told Me About, along with tearing, colic and poo-once-on-solids.
After aaages, just as DS finally started sleeping through, all this nighttime weirdness started. We did a Google and found out about this 8 month sleep regression, although there is clearly some disagreement about when it happens.
So: is it just one sleep regression that can start any time, or do they have three end-to-end? DS seems to favour the latter interpretation. What are your success stories? WHEN WILL IT STOP?