WE have had the same problems with Atlanta over the past few weeks, she was waking up every 2-3 hours screaming for me and the noly way to stop her was to bring her in our bed as I was exhausted ( bad idea!) we have finaaly got her into her own bed by leaving her door open with tha loungeroom light on and e bought her glow in the dark stars for her ceiling (she said she was scared) and it seems to work, she might only wake up once a night now, I go and give her a cuddle and she goes back to sleep. Prob not much help, but all I can say is to try and get him to explain to you why hes crying and go from there. Hope you get some sleep soon!