Hi all, I have a 4 year old son who was recently diagnosed with ASD. We have had our fair share of sleepless night since he was born but as of later especially since the start of the school holidays it has become worse. I am putting him to bed at around 7pm but by 11pm he is waking up and awake for the rest of the night sometimes until 4am. He also has three older brothers who just won't be quiet at their bedtime and begin to run around, i don't know if this is startling him awake or if he just isn't resting enough?