Total Sleep

Sleep h duration

Total sleep duration per night in hours (excluding awake time).

Detailed Description

Total time spent in all sleep phases (deep + light + REM), excluding awakenings. The National Sleep Foundation recommends 7–9 hours for adults 26–64. Chronic sleep under 6 hours raises risks of metabolic syndrome and cognitive decline.

How to Improve

  • Allocate an 8-hour sleep window
  • Reduce caffeine intake after 2 PM
  • Use a sunrise alarm clock

Related Metrics

References