Hi, have you tried giving him something of yours to sleep with so that he "has a bit of you with him"? I used to give my older DS my husband's rugby jersey to sleep with when he was younger and that used to help. My youngest DS (almost 5) is also a very anxious child and worries about death, bugs, thunderstorms (he starts crying if he sees a cloud that looks like a cumulo-nimbus) etc. Last night he wanted me to get the washing in off the line before he went to sleep (as it might be stolen) - he got himself into a real state because I said that I would do it once they were in bed. I can definitely identify with the "Freaking out". We have been trying to teach him to close his eyes and count slowly to ten and then things don't look/seem so bad - it has been helping. Hang in there because it does get better smile