I don't suffer from this, although I do have very disturbed sleep and the pattern varies.
It is interesting to analyze wake/sleep patterns. I was telling my analyst that I feel less anxious and depressed in the evening and night. We talked about how it feels different. How daytime means something - people are out and about doing things, living their lives, and how daytime can just feel so "out there" and exposing and vulnerable.
Evening is a slowing down, a time of coming 'inside' and quieting down. The day is 'over' (conventionally) and expectations are fewer... etc. Anyway, it is fun to analyze.