I don't dream. No nightmares either. I have no problems sleeping and I'm not on drugs so it isn't a health thing - I've been like this all my life.
The only times I've managed to dream are when I nap while already well-rested, but even then I still usually don't. Like I might get 1 or 2 dreams a year in total from when I go back to sleep immediately after waking up, but never from normal sleep.
i remember them semi-frequently, at least once every 2 weeks, or even once a week. Used to remember them almost every night when i was a kid, I've had a lot of wild nightmares, including several recurring ones. Luckily I don't have hardly any outright nightmares anymore, although I probably still have one every few months. a couple years ago i started keeping a dream journal and started remembering them more and more frequently, until I stopped randomly, but I honestly think that's why I even still remember them as frequently as I do. I should start keeping a dream journal again...