Xyrem is a kind of fairly new sleep medication that's hitting the ME/CFS population now. A study presented at the IACFS/ME conference a few months ago touted its effects and I just talked to someone who thinks its wonderful. It's purportedly able to stop those delta intrusions that are commonly found in ME/CFS. Has anyone tried it? I have a page on the website on Xyrem. Check it out here.