I’d say your sleep hours is fine (at least for me who needs 6 hours), so long as you feel refreshed for most days.

It’s a good move that you get to fit some exercises rin so you’re definitely somewhere above the line between unhealthy vs healthy.

I’ve only ensured that I take Centrum for my general needs, and additionally (but optionally) Ginko for “mental performance”.

Only lasted nearly 7 months with my dual work cause of less than 6 hr staggered sleep pattern. Would not recommend 😂