A REFERENCE LIBRARY ON SLEEP
How sleep works, and what changes it.
The Sleep Atlas explains the science of sleep in plain language and ranks the products people buy for the bedroom. Every article and ranking links to the research behind it.
RANKINGS
Products compared and kept current
ARTICLES
Plain-language explainers on sleep
SOURCES
NIH, NHS, and peer-reviewed studies
SCOPE
General information for adults
FIG 01 · A BEDSIDE LAMP AT NIGHT
01 / RANKINGS
Start with a ranking.
RANKINGS
The first rankings are on the way.
02 / SUBJECTS
Three places to start.
I. HOW SLEEP WORKS
What happens while you sleep
Sleep runs in cycles of light, deep, and REM sleep, timed by the body clock and by the pressure to sleep that builds while you’re awake.
TOPICS
Sleep stages · Circadian rhythm · Sleep need by age · Hormones
II. SLEEP PROBLEMS
Why sleep goes wrong
Trouble falling asleep, waking at 3am, and loud snoring have different causes. The articles describe each one and when it’s worth seeing a doctor.
TOPICS
Insomnia · Sleep apnea · Restless legs · Night sweats
III. BEDROOM AND HABITS
What the bedroom and your habits change
Temperature, light, noise, caffeine, and alcohol all affect how easily you fall asleep and how often you wake. Some of the changes cost nothing.
TOPICS
Bedroom temperature · Light and noise · Caffeine · Alcohol
FIG 02 · A BED BY THE WINDOW
03 / HOW WE WRITE
How each page is put together.
Every article and ranking follows the same three steps, so you can see where a claim comes from and how much weight it can carry.
STEP 01
Start from the research
Each page begins with systematic reviews, clinical guidelines, and large studies, read in full.
STEP 02
Say how strong the evidence is
Where studies are small, early, or disagree, the page says so next to the claim.
STEP 03
Link every source
Claims link to the study or health agency they come from, and every page shows the date it was published or last updated.
04 / LATEST ARTICLES
Recently added.
The first articles are on the way.
FREQUENTLY ASKED QUESTIONS