I know from experience that the WBTB method will almost always produce LDs or at least sleep-paralysis for me. However, the problem is that I'm a really, REALLY deep sleeper. I will often wake late the next morning, wonder why I didn't get up in the middle of the night, and then discover that somehow I must have got up, turned off both of my alarm clocks and gone back to sleep without even realising it!

I was just wondering if there's any other really heavy sleepers who have a particular way of making themselves wake up in the middle of the night. Perhaps I need to let myself sleep a bit longer? I usually time the alarms so that I'll wake up after 5 or 6 hours, but as I said above, I almost never manage to stay awake.