Son having trouble going to sleep

[Guest guest]

Well, tonight was worse than other nights. My son took over 2 hours

to fall asleep. Typically, it can take about an hour on average per

night. Tonight I tried putting him to sleep 15 minutes earlier.

I've also tried 15-30 minutes later and still I seem to get around an

hour for him to fall asleep.

Once he falls asleep, he normally will sleep through the night. I

just hate wasting so much of our time laying around in the dark.

He also tends to be somewhat hyper at night (and worse behavior in

general). He has big ups and downs throughout the day -- going from

laying around to racing around. Does anyone have any ideas? He's four

years old.