For the last ten days I've been avoiding Aspartame, and I've been getting 5 or 6 hours sleep each night. I know it's incredible, but it's true. It's wonderful.
I know non RLSers would feel deprived on 5 hours sleep, but we know 5 hours sleep is a beautiful miracle, I feel so well.
I know things are different for everyone, but I really advise that you check every thing you eat and drink for Aspartame, you might be lucky like me.
When I'm feeling brave, I'm going to start drinking Diet coke again for a few days, I'll let you know what happens.