unconscious psyche

In Bram Stoker’s Dracula, we noticed that there were times when narrator mentioned about an incident where a character was in unconsciousness and dreaming of imaginary things, which can be compared to the psychoanalytic criticism. I agree to Freud when he mentioned about unconscious mind and all.I find it interesting and related it to Bram Stoker's Dracula, the part where Mina Harker was not being able to sleep and was dreaming in state of an unconscious mind, which I guess was happening in reality. And if we go in the middle chapter’s something exactly like this situation was faced by Lucy, when she could not being able to sleep because she was afraid that she would get weak if she fall asleep, which proves that in the novel, many times we noticed the unconscious mind situation of the characters, which shows that somewhere Stoker is closely in relation to this characteristics of mind.