Calculate the best times to wake up or go to bed based on 90-minute sleep cycles
I want to wake up at...
Settings
Suggested Bedtimes
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How to Use the Sleep Cycle Calculator
Insaan ki neend 90-minute ke cycles mein chalti hai. Agar aap cycle ke beech mein uthen (Deep Sleep), to aap pura din thaka hua mehsoos karte hain. Yeh tool un cycles ke end points calculate karta hai.
- Wake Up Time: Woh waqt select karen jab aapko bed se uthna hai.
- Fall Asleep Time: Average insaan ko neend aane mein 14-15 minutes lagte hain. Aap apna personal time set kar sakte hain.
- The Result: Tool aapko 4-6 options dega. Green options best neend (7.5 - 9 hours) ke liye hain.
- The 90-Minute Rule: Ek standard neend mein 5 se 6 cycles hote hain.
- Sleep Inertia: Cycle ke beech mein uthne se "Brain Fog" hota hai jo kafi der tak rehta hai.
What is a sleep cycle? +
A sleep cycle consists of different stages: Light Sleep, Deep Sleep, and REM (Dreaming). One full cycle takes about 90 minutes. Waking up at the end of a cycle makes you feel more alert.
Why do I feel tired after 8 hours of sleep? +
Quantity isn't everything. If your alarm goes off during Deep Sleep, you'll experience sleep inertia, regardless of how many hours you've slept.
How many hours is ideal? +
Most adults need 7.5 to 9 hours (5 or 6 cycles). However, some people function well on 6 hours (4 cycles) occasionally.
What is the 'Golden Hour' for sleep? +
Usually, the hours between 10 PM and 2 AM are the most beneficial for physical recovery, as the body produces the most growth hormone during this window.
Does blue light affect cycles? +
Yes! Blue light from phones suppresses Melatonin (the sleep hormone), making it harder for your body to enter the first cycle of sleep.
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