My LO used to be a great sleeper. From six weeks until 3.5 months she STTN every night. Then... We hit the four month sleep regression and never recovered. We'd have good periods where she would only wake up once a night and bad periods where she would wake up too many times to count. But we never got back to consistently sleeping through the night. The past couple weeks have been brutal between ailments (croup, double ear infection, and two teeth popping through) and travel. Well she's finally feeling better and back in her own crib and the past three nights in a row she has slept eleven hours straight through!!! I don't want to jinx myself but man I'm praying this will become the new norm for us. Lets just pray she doesn't regress all over again when she hits nine months on Monday.