Normal for 3 months?

[Willow]

Sure is! Your DS sounds almost identical to mine at that age (except he's NEVER slept longer that 5.5 hours!).

He's a lot more consistent now during the day (and no longer wakes after one sleep cycle he sleeps for minimum 1 and a bit hours now, most of the time 1.5, sometimes 2), but nights vary.

With DD I found it wasn't until 7-8 months that I knew I could put her down at 6.30pm/7pm and I wouldn't hear from her till 7am the next morning. Up until then, I never knew from night to night whether she'd sleep through or not.