When did it start? How long did it last?

We are alternating nights of great sleep with nights that are nightmares (like last night, for example). We haven't swaddled in a few weeks, so that isn't a new change. She is very nearly rolling both ways and is so much more observant the last couple of days. She is only 14 weeks, but it seems like she is going through some of the things that often contribute to it.

How did you cope? Bonus if you slept in the same room! Or if you can send coffe and/or energy through the Internet!