Wow, what are the dreams about? :wink: sounds fun.
Psychologists say you always dream when you sleep, whether you remember them or not. The kind of vivid dreams you are talking about I'm not so sure, they sound quite unusual. Low sugars certainly make me more liable to, shall we say - imagination. But thats while I'm awake 8)
I think it sounds to me like a personal thing. I personally have always been an insomniac, and have periods where I can hardly sleep at all This problem hasn't changed really at all for me, and happens regardless of good control or bad control, and I've had extreme examples of both over the years. So my personal experience makes me not sure if sleeping and BG levels can be that closely connected.