3 and a half month old DS has started to wake up after between about 10-20 mins sleep everytime he is put down for a nap or to sleep at night.
Why is he waking up? He is fed and changed and burped, warm but not too warm etc etc.
He is now always really overtired and yet after 20 mins PING he's awake. He woke up five times last night before settling.
Is this a phase or recognisable to anyone?