Ds has always been a 7-7.30 with 2 hrs nap (since he was 1 anyway!!!), and would sleep as soon as he got into bed. He is now 2.3 and has started struggling to go off to sleep both nap time and at night, even if he's had less sleep in the day. He is starting to drop his naps at nursey (2 days per week) but is not making up the time that night and is waking 6.30am ish every morning, despite being tearful when he first gets up, which suggests he's still tired. If he naps in the day, I have been waking him after 1-1.5hrs but he is then very cranky, again which suggests he's still tired. Why is he having trouble settling and staying asleep all of a sudden? His behaviour is not like him either, which I think is due to tiredness in part. His speech is really developing at the moment, so do they have a mini development spurt which could be stopping him switching off?