My grandson is 21 months old and wakes 4or 5 times a night talking for up to 3hrs , he talks about what he has done that day, the animals o his quilt the toys on his book shelf...in general happy conversation then goes back to sleep, everyone says ..what is the problem...the problem is he then suffers from chronic fatigue during the day an cant cope, he becomes angry an frustrated . My daughter has tried everything , even taking him to a pedeatrician who ruled out medical problems and apart frm that had no answer.my daughter is also 32wks pregnant and at her wits end with no sleep at night and toddler tantrums all day due to lack of sleep....can u please help with some advice