Sleeper diary

Ines

Two weeks of revision, one week of exams and a weekend that tried to repay all of it.

Who

Medical student, 23

Where

Porto

Usual bedtime

01:20

Hours a night

6h 42m

Wake-ups

2

In one line

Exam weeks look like a different person in the data.

One night, drawn

A typical night from the ring: deep sleep at the bottom, awake at the top.

Asleep6h 42mAwake

The diary

Night 5

Revision until 00:50, then forty minutes of my phone telling me I should be revising. The ring has me asleep at 01:34.

Night 14

Exam day. Slept 4h 10m. Felt fine until the second paper, then read the same question five times.

Night 22

Slept eleven hours on Saturday. The app calls it a ‘recovery night’. My flatmate calls it a waste of a Saturday.

More diaries

Five more people, five more kinds of night.

Diary 015h 12m a night
A nurse in scrubs in a hospital corridor at night
“Blackout blinds, earplugs, and my phone in the kitchen.”
Mara
ICU nurse, 41
Asleep5h 12mAwake
Diary 025h 36m a night
A baby asleep in a dark nursery
“I have not slept more than three hours in a row since October.”
Tomás
Father of twins, 36
Asleep5h 36mAwake
Diary 036h 42m a night
A student reading by candlelight
“Exam weeks look like a different person in the data.”
Ines
Medical student, 23
Asleep6h 42mAwake
Download

The full report, the dataset and every new chapter.

A 64-page PDF, the anonymised CSV of 1,412 sleepers and an email when new chapters land. No other email, ever.

Get the report and the data →
© 2026 Stillhour Institute. Data collected January to March 2026. Figures may be quoted with credit.Made with ReportfoldBack to top ↑

Create a free website with Framer, the website builder loved by startups, designers and agencies.