Don’t you love thoose dreams that you think you’re dreaming 30 minutes but it was actually IRL just one minute!!!
Share thoose dreams with me!
I have experienced dreams which lasted for hours, but how are you supposed to know how long it lasted IRL? 
By the enviorment.
I heard noise when I woke up and then got back to sleep, woke up and the noise was still there.
Good idea with the noise, but I usually sleep when it’s quite, so I don’t know 
or with morning naps, any way i had a dream where i was a spy and searching a wharehouse fo what seemed an hour and in RL it was 5 mins
That’s Pretty Cool!!! 1 hour-5min what a difference!
When I was a kid I used to have really long dreams in the middle of the night, like 1 1/2 hours, but I knew it was less because it was a nightmare, and I woke up, and it was midnight, and at that part REM stage only lasts 10 min
You don’t dream only in REM, though. 
Yeah i read nightmares are not during REM at all, but the stage before where your eyes don’t always move
I’ve never really noticed how long my dreams are.
*Puffy makes a mental note: Figure out how long my dreams are.
This seems pretty logical. I have my most vivid dreams in the half-awake/half-asleep state.
Im pretty sure the half awake half asleep stage is REM sleep
Anyone notice that quite often their dreams are abridged so that although you don’t notice, things can seem to happen much quicker than they would in real life (such as a bus journey)?
This could also be partially influenced by patchy memory though.
It’s like a movie that for us its hour and a half but for the characters it can be a whole year!
I don’t really remember any time I had something to go by. But I remember some lucids that seemed to last a good while, but when I woke up and wrote them down, they didn’t appear to be that long.
Regarding non-REM and REM dreams. I saw one documentary that said there is a qualitative difference between them. REM dreams had statistically more negative dreams. They theorized that it had to do with the amygdala being activated, or something.
I keep a roughly 9 inch wide LCD clock elevated 1.5 ft above the foot of my bed. I can see it lying down without moving my head.
anyway, I’m pretty sure zeos can track REM
I remember having dreams which lasted for days, even weeks. It was very strange for me to wake up and find that I’d only been sleeping for a few hours. Also, in dreams like that you tend to get rather attached to the dream characters - such a shame that you have to wake up in the end