The title says it all really so am really hoping that posting this might provide some help.
DS is 18 months old. At the age of 8 weeks he slept 8 hours per night, he slept 12 hours per night at the age of 12 weeks. All fantastic so far. At the age of 19 weeks all hell broke loose to the point that his sleep patterns do not resemble a pattern at all. We did move house when he was 22 weeks old and I attributed the sudden change to this (pre-moving stress picked up from his parents?) - however, that was more than a year ago.
His evening routine is absolutely rigid - his daytime routine depends upon whether we're out and about but never varies by more than 30 minutes. I ensure that he receives the same amount of indoor/outdoor play each day and he is not teething or ill (although he obviously has been during the last 14 months at various points).
As an example: one night he will sleep for 10 hours and have a 2 hour nap the following day, the next night he will sleep for 2 hours and have no nap the following day, he will then sleep for 4 hours and have a 15 minute nap the following day, then he will sleep for 7 hours and have an hour nap the following day, followed by 4 hours sleep and a 2 hour nap the following day. He always wakes between 6am and 7am.
I have consulted 2 different doctors regarding this and have been told that "all babies do this".
So, does anybody have any advice, is anybody else going through this or is it indeed extremely common and I just need to deal with it?
Thanks for reading! 