Is Sleep Regularity worth prioritizing?

Sleep regularity has emerged as an active and increasingly well-supported area of research, with recent large cohort studies (UK Biobank, MESA) finding that day-to-day consistency of sleep timing predicts cardiovascular disease and mortality risk, in some analyses more strongly than sleep duration itself. Weighing that against the numbers, Sleep Regularity is worth watching rather than prioritizing yet — the potential upside is rated high (58/100), but the evidence supporting it is only moderate (65/100).