Either I don't dream, or never remember. I don't have trouble sleeping, in fact I probably sleep too much, I'll stay out cold until something wakes me up. But no matter how long or short a time I spend in bed I never remember having a dream, and I'm always as tired as when I got in bed, most of the time I feel like a zombie or something, never fully awake or fully asleep. It really sucks.
The only dream I remember having was about two years ago. I dreamed that I woke up, got ready, and went to school. I was about half way through a perfectly normal, dull school day when my alarm woke me up and I had to do it all over again. I was quite pissed at my subconcious for trolling me like that. It felt real too. I spent two hours on a homework assignment my Chem teacher gave me in the dream the next day, turned it in irl, and my teacher was like wtf is this.