Research, explained plainly

The NSDR Blog

Explore the latest research on Non-Sleep Deep Rest, sleep optimization, and evidence-based techniques to enhance your well-being.

Huberman's Sleep Cocktail: Full Supplement List + Doses
★Featured
HubermanSleepSupplements

Huberman's Sleep Cocktail: Full Supplement List + Doses

Every dose in Huberman's sleep cocktail, checked against his own newsletter and podcast, with the evidence for each ingredient and who should skip it.

11 min read

Latest Articles

Eustress vs Distress: When Stress Can Actually Help
Nervous SystemGuides

Eustress vs Distress: When Stress Can Actually Help

What eustress is, how it compares with distress, why the same pressure can go either way, what the stress-mindset research does and doesn't show, and how to keep stress on the useful side. For adults.

11 min read
Why Does Caffeine Make Me Tired? 6 Reasons Coffee Backfires
NutritionGuides

Why Does Caffeine Make Me Tired? 6 Reasons Coffee Backfires

Caffeine hides tiredness rather than removing it. Six reasons coffee can leave you sleepy, from sleep debt and tolerance to a late cup or a sweet latte, plus what to try instead and when to see a GP.

12 min read
How to Stay Awake When You're Exhausted: 9 Things That Help
GuidesNapping

How to Stay Awake When You're Exhausted: 9 Things That Help

Nine ways to get through a few hours when you're exhausted, each rated by the evidence, from a short nap and well-timed caffeine to light and movement, plus when to stop and see a GP.

13 min read
Delta Waves: What Deep-Sleep Brainwaves Do and Why It Matters
SleepGuides

Delta Waves: What Deep-Sleep Brainwaves Do and Why It Matters

What delta waves are, when your brain makes them, what deep sleep is linked to, and what the evidence really says about binaural beats and other sound for deep sleep.

12 min read
Abstract sleep-stage line on a cream background
SleepResearch

How Much REM Sleep Do You Need? (and How to Get More)

Healthy adults spend about 20 to 25% of the night in REM sleep, roughly 1.5 to 2 hours. A minutes table, how far to trust your tracker, and what actually moves it.

11 min read
Restless Sleep: Why You Toss and Turn All Night and What Helps
SleepGuides

Restless Sleep: Why You Toss and Turn All Night and What Helps

Why you toss and turn at night, from a hot room and late coffee to a busy mind, what helps you stay asleep, what your tracker's restless score means, and the signs it's time to see a GP.

10 min read
Savasana (Corpse Pose): How to Do It and Why It's Hard
GuidesYoga Nidra

Savasana (Corpse Pose): How to Do It and Why It's Hard

Savasana, or shavasana, takes no strength or flexibility, yet teachers often call it the hardest pose. The steps, how long to stay, what the name means and what to try when lying still is hard.

9 min read
Tired but Wired: Why You Can't Sleep When You're Exhausted
SleepGuides

Tired but Wired: Why You Can't Sleep When You're Exhausted

Worn out but your mind won't switch off? Why it happens, five things to try tonight, what to change in the day, and when it's worth seeing a GP.

12 min read
7 Types of Rest: Which One You're Missing and How to Get It
GuidesResearch

7 Types of Rest: Which One You're Missing and How to Get It

Sleep is only one kind of rest. The seven types at a glance, a quick self-check for the one you're missing, and an honest look at where the idea comes from.

12 min read

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