Those responses are very much valid responses to a topic that some share as a valid conversational topic on a thread about getting good sleep and learning, myself included.

Even better, the topic is visited on part 6.2[1] of the article you're replying to.

1 https://super-memory.com/articles/sleep.htm#Alcohol

  >Weird responses from those two users. Ignore them

Some might say you are the one worth ignoring.