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Sleep Data

What Is a Good Blood Oxygen Level? What Mine Looks Like While I Sleep

What Is a Good Blood Oxygen Level? What Mine Lo...

Kaivan Dave

What is a normal blood oxygen level (SpO2)? The healthy 95 to 100% range, what mine looks like while I sleep, and when a low reading actually matters.

How to Beat Jet Lag: What My Data Shows After Flying the World

How to Beat Jet Lag: What My Data Shows After F...

Kaivan Dave

How to beat jet lag: shift your clock, chase daylight, and protect your first nights of sleep. My own WHOOP data from an India to US crossing shows the dip...

How to Fall Asleep Fast: What Actually Works for Me

How to Fall Asleep Fast: What Actually Works fo...

Kaivan Dave

How to fall asleep fast and quickly: the calm, regular wind-down that actually works, shown with my own WHOOP data, plus the military method and breathing, honestly reviewed.

How to Improve Your HRV: What Actually Raised Mine

How to Improve Your HRV: What Actually Raised Mine

Kaivan Dave

How to improve your HRV: the levers that actually work, shown with my own WHOOP data, including a real month my HRV climbed and a real month it fell.

How Much Deep Sleep Do You Actually Need?

How Much Deep Sleep Do You Actually Need?

Kaivan Dave

Home›Sleep Data›How Much Deep Sleep Do You Need Table of contents ▾ 01Quick answer 02What deep sleep is, and where it fits in your night 03How much deep sleep do...

Normal Respiratory Rate: The Adult Range and What Mine Looks Like

Normal Respiratory Rate: The Adult Range and Wh...

Kaivan Dave

Home›Sleep Data›Normal Respiratory Rate Table of contents ▾ 01Quick answer 02What respiratory rate is, and how to check yours 03Normal respiratory rate range for adults, by age 04What a healthy...

How to Lower Your Resting Heart Rate: What My Own Data Shows

How to Lower Your Resting Heart Rate: What My O...

Kaivan Dave

Home›Sleep Data›How to Lower Your Resting Heart Rate Table of contents ▾ 01Quick answer 02What a resting heart rate is, and how to check yours 03Normal and good resting heart...

HRV over a full year: monthly average from my own WHOOP data

What Is a Good HRV? Real Numbers and Ranges

Kaivan Dave

There is no one good HRV number. What HRV means, rough ranges by age, why your watch and your friend's differ, and what my own HRV looked like across three...