Ds is 5 months and in most ways is now an easy baby (wasn't at the start!). He goes to bed at 7pm each night, self settles, and takes regular naps. He wakes for night feeds around 11 and 3 which is fine but after at least one of them, if not both, he is awake for a full 2 hours before he gets tired again (same as day time where he needs to nap after 2 hours awake).
He's been doing this for a couple of months now. I thought it was a phase but it's not going anywhere. Generally we leave him in the cot (in his own room) and he chats to himself, plays with his comforter etc and once tired he goes to sleep. But it keeps me up as he's loud on the monitor and often wants me to go in every 20 mins to say hi. He's not hungry or in pain, just wide awake.
I can't find much on this problem, he self settles fine once tired and most books etc think that's the answer to everything. I do wonder if he naps too much but he's really grouchy without them - he naps approx 9-10.30, 12.30-2.30 and 4.30-5.
Has anyone experienced this and how long did it last?