My friend has been struggling with nightmares a lot and I found out how bad it is today... I don't know what to do to help him. Even though he went to bed in a great mood last night (thanks to me, woo) he still ended up not sleeping at all thanks to the nightmares. He's gone 4 days straight no sleep before, multiple times, according to him - one such streak was recent.

He does not want to go to therapy because he thinks it will open up a lot of stuff he's already recovered from... I did try suggesting that already, and even insisted some when he said that.

I'm looking for ideas that may not be so conventional. He is a self-helper type of dude, so anything typical he's probably already seen. Are there any atypical solutions out there that you have seen work? Preferably ones that he doesn't need someone to help him with because I'm not sure he would let me help him, but I would try if he let me.