I have lived through 20+ years of my wife with this issue since her car accident. Her sleep deprivation eventually turned into full blown panic attacks and an anxiety disorder. It seems almost any time of the night that I wake up she is already awake.
Night noises bothered both of us so we have a fan running while we sleep. The white noise is very easy to sleep with and it muffles most other sounds.
I am on the fence about problems remembering dreams being caused by anything other than meds, Big Pharma or otherwise. On a few occasions when I quit smoking for a period of time, I would start to remember my dreams Of course if you do not reach REM you may not even have dreams.
My wife mostly has not remembered her dreams since she starting taking cannabis again. I know for a fact she dreams because she talks in her sleep, and I can interact with that conversation on rare occasions. When I ask her about it in the morning she cannot recall the dream in most cases. I am able to sleep through almost anything. I generally sleep like a rock, or a hibernating bear that snores, LOL.