Log your sleep for each day of the week and get a comprehensive analysis of patterns, consistency, debt, and personalized improvements.
Single-night sleep data is useful but incomplete. Weekly analysis reveals patterns that are invisible day-to-day: social jet lag (weekend/weekday timing shifts), progressive debt accumulation, the relationship between consistency and quality, and which nights consistently underperform. Research shows that consistency of sleep timing — as measured by social jet lag and inter-night variability — predicts health and cognitive outcomes independently of average sleep duration.
Sleep debt is cumulative. Each night short of your target adds to a running deficit that compounds. A week of 6-hour nights against an 8-hour need creates 14 hours of debt — equivalent to nearly two full nights of total sleep deprivation in terms of cognitive impairment. The weekly view makes this accumulation visible and actionable.