The department of
Caffeine
Caffeine affects sleep timing, depth, and quality in ways worth understanding. Explore half-life, sensitivity, timing, and how much is too much with science and honest reviews.
Pieces
6
Caffeine
October 2026 · 6 min
Do Health Metrics Change Anything? A Six-Week Smartwatch Review
The question I kept asking before I bought one is probably the one you're asking now: will a $349 watch change anything I actually do, or will it just show me, in nicer graphics, that I sleep badly…
By Emily Drayton · Read →
Sleep
October 2026 · 9 min
Watching an Apple Event Live at 3 a.m.: Three Ways to Keep Up, Tested on My Own Sleep
Apple holds its keynotes at 10 a.m. Pacific, which is a civilised hour in Cupertino and 3 a.m. where I live, in Sydney.
By Rachel Stanton · Read →
Wearables
October 2026 · 12 min
Wearable Technology for Sleep: 28 Nights Testing the 'Never Take It Off' Rule With a Ring and a Screenless Band
The standard advice on sleep tracking is simple: pick a device, wear it around the clock, and don't take it off.
By Patrick Sumner · Read →
Sleep
October 2026 · 7 min
The Casio F-B100W, Worn to Bed: A Minimal Smartwatch Against a Full One and a $20 Original
The Casio F-B100W reportedly sold out in Japan, then got hard to find in the UK, and is now reaching US shelves.
By Henry Ashford · Read →
Caffeine
October 2026 · 7 min
Apple Watch Series 12 Review: Ten Days, Twenty Coffees, and One Overnight Reading I Didn't Like
I drink two cups of coffee a day, and for years I've told myself the second one, the 4 p.m. one, doesn't matter. This Apple Watch Series 12 review started as a way to prove that.
By Natalie Forsythe · Read →
CPAP
October 2026 · 13 min
Sleep Apnea Treatment, Thirty Nights In: What a Celebrity's CPAP Confession Finally Got Me to Try
My partner's recording is forty-one seconds long. Thirty of those seconds are snoring. Then there are eleven seconds of nothing, no breath at all, and then a noise like a garbage disposal trying to…
By Owen Blackwell · Read →
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