I've found that as I get older if I ingest any remotely psychoactive substances (caffeine, alcohol), I'll have difficulty getting a full 8 hours of sleep. Same

I've found that as I get older if I ingest any remotely psychoactive substances (caffeine, alcohol), I'll have difficulty getting a full 8 hours of sleep. Same applies with stress. The problem is compounded if I'm not exercising regularly or if there are any gaps with my nutrition.