Sadly, my dreams are boring. I barely remember them. I never even had a wet dream in my life.
I've never had a wet dream either but i've never had morning glory either

I remember as a teen when lads were talking about these things just staying silent and thinking there must be something wrong with me and wondering if it would happen at some stage but it never has.
I've subsequently rightly or wrongly put it down to me wanking 5 or 6 times a day in my younger years so perhaps I was taking away the natural urge for my body to act / react in these ways

Reading the articles however it says that erections tend to happen during deep REM sleep therefore you wouldn't necessarily know you were actually having them unless you woke up for some reason.
I do recall almost 30 years ago having an amazing dream about a girl at work I fancied, I was lying on my back and she straddled me before pulling her long skirt up and sitting on my cock cowgirl style.

I remember the dream was amazing and exceptionally vivid, perhaps I only remember it as I did wake up with a hard on, imagine my disappointment when I realised the cat was actually pouncing on my nether region and attacking me

I can only assume that I was thrusting my pelvis slightly and the movement under the duvet with a hard on poking up slightly looked like something to try and kill, I do remember the last time the cat pounced she caught me right square in the balls which is what fully woke me up, hurt like fuck

It was also the closest I ever got to shagging the girl