When you first started, Ian, I first thought of sleep apnea but Lipitor may be the culprit. I too, have trouble sleeping and come to think of it, it has been since starting Lipitor. I know we can't blame everythiong on Lipitor - but - I am currently on the drug and preparing to discontinue it in the next three weeks. For now, I'm going to make a list of the ailments I have and see how each is affected once I've been off Lipitor for several months. Who knows? I could be writing a book!