Hi we have a 20 month old boy and at sleep time as soon as he hears sleep time he starts to cry and scream we try between the hours of 8 and 9 pm with a screaming session and climbing out of the cot after dads the bad guy with the im the boss session he finally gives in and goes to sleep but between 11pm and 2 am he is awake screaming then climbs out to come to bed with us once in bed with us he is ok sleeps through we have tried nurophen,panadol,painstop,stuff on the teeth tried laying with him in his room still screams what can we do its crazy going through this everynight PLEASE HELP US????????????????????????????????????