My son is 4. During the day he is (mostly) an angel and a pleasure to be around. But at night he won't fucking sleep.
He will sleep (sometimes after a short battle) if DH puts him to bed, but usually then wakes up several times and DH sleeps soundly through the crying. DH works shifts and when he's on nights DS won't sleep for me. People tell me I'm obviously not strict enough but tonight I've walked him back to bed every 5 mins since 7.30pm and he's still crying. He has been known to literally cry from 7.30pm until 7.30am. I've had 4 years of sleep deprivation and lost count of the number of car crashes I've had. I just feel like such a bad mother. I've also got 2 year old twins who have never been a problem.