What kind of sleep disorder is it when a person starts to sound drunk at night when tired?

Question by heart_focus: What kind of sleep disorder is it when a person starts to sound drunk at night when tired? I am talking about a person who does not drink any alcohol, use any drugs (legal or illegal), and who has been this way most of their life? Also they are definitely a "morning person" but cannot focus well after about 8 pm and then start to sound naturally drunk by bedtime. (I know this is a sleep disorder because I found it once and now can't remember what it was). I am not talking about sleep deprivation. I'm talking about regular and normal hours of sleep, such as 10-6 or 11-7 every night. I think it may be part of "Advanced Sleep Phase Syndrome." Anyone heard of this before? (I have Delayed Sleep Phase Syndrome, the opposite of what I'm talking about here).

Best answer:

Answer by Michael G
It is not a sleep disorder. In fact, sleep deprivation (to any degree) is chemically very similar to drinking insofar as how it affects brain chemistry and the physical results. Its completely normal.

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