Health
What Time Should I Wake Up or Go to Sleep?
Calculate optimal wake and sleep times based on 90-minute sleep cycles. Wake up refreshed instead of groggy.
In this article
90-Min Cycles
Light → Deep → REM = ~90 min। Cycle के बीच उठना = fresh। 6:00 AM wake: sleep 9:00 PM (6), 10:30 (5), 12:00 (4)। +14 min falling asleep। 7.5h (5 cycles) often better than 8h।
India
Average Indian sleeps 6.5h — among least in world। Smartphone/social media: #1 sleep killer। Blue light filter: 9 PM onwards।
⚡ CalcWolf Insight
The single best sleep improvement most people can make: consistent timing. Going to bed and waking up at the same time every day (including weekends) regulates your circadian rhythm more than any supplement, app, or mattress. Irregular sleep schedules are equivalent to constant mild jet lag.
Frequently asked questions
6 AM ke liye?▾
6 cycles: 8:46 PM। 5: 10:16। 4: 11:46।
Indians कम सोते हैं?▾
Average 6.5h — WHO recommends 7-9h। Phone addiction main reason।
✓ Math logic verified against primary sources
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