DS1 is almost 6 years old (birthday in a few weeks) and since getting Skylanders for Christmas is having nightmares about monstors. He loves playing the game and we've been talking about how they are pretend and it's just a game but lately getting ready for bed he's in tears (i think he's scared of the thought of anymore dreams). Last night he slept in our room as we'd just gotten back from being away and i wanted him to get a decent nights sleep after many late nights. He was fine with this and wanted to do it again but i've said no, i don't want it to become a regular thing.

Aside from taking the game away what more can i do to get him through this?