Lulu2, hope this doesn`t seem silly to you,but does dd,drink any cows milk before going to bed,we had months of screaming and tantrums,in and out of bed,but our 2 year old complained of a sore tummy,to cut the story short he has been diagnosed lactose intolorance,since switching him over to soya milk,he goes to bed without any dramas,and all the sreaming has gone,a totally different child,not sure if this helps you but thought i would share our story with you,good luck hope everything settles down for you hun