Can you doze at all, or is it always quick deep sleep? (would sound desirable)
Do you have or feel any impact, any disadvantages? Because sometimes a lot beyond the basic sleep is attributed to being able to dream?
I can't think of how it could be a disadvantage. I hear people have nightmares. I sure wouldn't want to experience those.
I also have zero emotional response to music. All music could cease to exist and I would be completely unaffected. I've always wondered if there is some connection between not dreaming and not having any sort of emotional response to music. Are the two in the same part of the brain?
Do the dream journal process regardless. It is totally fine to wake up, take out the dream journal, write "I had no dreams" and the date and call it an entry.
Try it, ideally two weeks, but give it at least ten days.
There's a really good (but not 100%) chance you do have dreams but just really don't recall them - but you may start to capture fragments by attempting to describe them first thing.
And it really does have to be first thing. Before you play with your phone or brush your teeth. As soon as you can move, grab and start writing.
I can also read which apparently isn't universal.
It's unclear if people getting proper sleep, but don't dream, exist.
It's very clear (to me) that people who dream all the time are getting proper sleep.
My mum had the same dream every night with someone chasing her. She would wake up the moment they caught her. I asked her to describe the surroundings then told her at which point I would enter and scare them off.
The next day she put up a face that explained everything. I laughed so hard.
Maybe you're just enjoying a sound sleep and waking at the "right" time.
I'm in a similar state to what you describe, I can only recall two dreams my entire life. I suspect my apnea disrupts dreaming.
Imagine that my mind like a glider. Glider is connected to a Cessna by a tether, but it's a magical tether that can disappear. In fact, it takes me active work to keep it connected, like I'm holding on to the end of the rope with my hands. The plane takes off and I'm following in lockstep about the main subject matter... looking down at the landscape below, to the left, to the right. After a quick climb, and at velocity, I've forgotten about keeping tethered, holy crud, I'm in the air! I want to bank, dive, maybe loop! What's over here? I can catch a thermal and go on forever depending on the landscape, but still often see more appealing currents and need to switch over. Oh wait, where did the plane go?
At this point I feel my imagination is very untrained, and since it is like a muscle, I need to practice somehow. But I believe the patterns I've instilled in my day-to-day, along with my anxieties around life have forced my imagination into a standstill. Unengaging forms of consumption, ADHD causing me to avoid stimulating tasks, anxiety guiding nearly all of my thoughts all come together to make me have no time or willingness to daydream anymore.