I have never felt drained from an LD, and talking with people like hukif and Oreo that have LDed alllllll night long, they dont seem to feel tired all the time or worn out. So this is kind of just a hypothesis without any substantial evidence, no good observations, and no experiments that have been run showing that this is the case.
It was for me though I had to put a lot of effort into lucid dreaming and that would tire me up. I have a total of 13-14 lucids.
Bookmarks