2 year old sleep

[DeeDeeKayKay]

Help
My previously good sleeper has gone to pot. Hes been getting up at 4am and not going back to sleep. Hes put down at 7 but is still going now. Hes been bought downstairs and given toast and milk but hes still crying. hes also had nurofen

anyone?

When mine did this it was because he needed to drop his nap but go to bed earlier, he was over tired and slept less and less. Took me ages to figure that though.

Is he napping in the day?

I read somewhere that the early rising is quite often due to not long enough of a nap in the day, I know that sounds counter intuitive but there was a theory behind it I cant remember, sorry! Other than that, could he perhaps be having bad dreams he isn't telling you about, obviously you have no control over them but he might benefit from talking about them?