My Ds 4.11 did not sleep for more than 2 hours a night at the most up until August just gone when the Doctor finally gave in & prescribed him Melatonin . It took 3 weeks to start working and then he would generally sleep from 7am-6am though the odd night he would not sleep . Now the past 2-3 weeks the Melatonin hasn't worked & im at breaking point [sad] Can't get him to the Doctors until the School holidays at the end of October . I can't go another night without sleep , would it harm my Ds if I gave him 2 tablets instead of the usual 1 [blush] please don't flame me im desperate [sad]