The internet noticed
For a long time, we struggled to capture what our light actually feels like in person. This is the closest we’ve come.
what the replies looked like ↓
People post about their own lights
status update: the Sunday Light is indeed the closest thing to sunlight you can buy. 10/10, no regrets. absolutely bonkers. for reference, this is my actual light at 80% brightness in a room with almost zero outside light.
Paul paid full price for his light. 900 people bookmarked his review.
my friend just built one of the coolest wellness hardware products ive ever used it effectively simulates the ☀️ in your home two weeks of using it and already noticed improved mood & energy also beautiful design & engineering
more coming from Presh - he is filming with the light now.
Sesame came back
Sesame AI bought a light for their SF office earlier this year. They have now bought two more for their other offices.
Influencer drive
We’ve gifted lights to people who have said they will love it and are happy to help communicate its value, without payment. We expect this to drive significant brand awareness over the summer.
Steven Bartlettinstalled - London home
Bryan Johnsonoffice install booked
Andrew Steeleinstalled - YouTube video coming - 53.5K subscribers
Jake Tivyshipped - build video coming - 725K YouTube subs
Dr Tara Swartfilmed - post coming - 810K followers
Dan Godelivered - install shortly - 1.1M followers
Zaid K. Dahhajdelivered - install shortly - 52K followers
Brandon Luu, MDdelivered - install shortly - 39K followers
Idris Elbain talks - install being arranged
Colin Furzein talks - 13.3M YouTube subs
green = installed · amber = on its way · blue = in talks
we met Colin Furze at Grand Designs - he asked if he could get one for his bunker. still working out the logistics.
neuroscientist, NYT + Sunday Times bestselling author, 810K followers on Instagram.
this feature was one of the main reasons Bryan Johnson said yes to a light in his office.
Retail, shows & hotels
live on healf.com - listed 6 July, first purchase order in
Healf is one of the UK’s biggest online wellness retailers.
- Bought their first 6 lights upfront - live since 6 July
- Email to their full 500K database - 1 August
- Homepage carousel + Sleep pillar feature - from 27 July
- Dedicated Sunday email + social features - August
- Pinned beside Eight Sleep on site - live now
Hotels in talks
- AC Hotel Downtown LA - discussing a whole floor of circadian suites
- The Standard - considering a small trial for their windowless rooms
- Six Senses - hotel and spa group, early conversations
hotels keep asking us about their windowless rooms.
British TV design icon Kevin McCloud came to see the light at Grand Designs Live. his words: “It’s incredible. Who needs to go on holiday?!”
thousands of people stood under the light - 3 sales from the show already and multiple warm leads.
we’ve been collaborating with IdeaWorks, who kit out luxury homes and superyachts. three of our lights have been on display at their London showroom all summer.
press lined up for the autumn ↓
Sep/Oct
Style
office install pieceMeanwhile, in the factory
Patents
- Sunday Light - original patent updated and strengthened
- The Window - UK patent filed
- PCT - international application in progress
The Window goes into production
The first batch of 50 starts this week. Rory and I fly out to China to supervise and work through any problems on the first units.
Manufacturing has not been smooth. We have worked through QC issues and an export ban in the supply chain, and some risk remains in the date. That is why we are going ourselves.
Aiming for a September launch.
The main light is ready for scale
Arms are now vacuum-pumped and delivered sealed from a large water-cooling factory - 100% reliability so far on the water-cooling components they make.
Remotes are now assembled by our Window manufacturer with rigorous QC. Unit costs keep coming down.
US set up
We have registered a US LLC subsidiary. Americans can now pay with Affirm, and our HSA/FSA application is in - so people can put pre-tax health money towards a light.
Nat (with new O-1 visa) will spend August in the US meeting our customers and pushing office sales.
Website overhaul
Rebuilt with all-new photography and film, shot in Prague with Petr Krejci. Also optimised for ecommerce: clearer CTAs, better pixel tracking, and regular A/B testing. See it at sundaylight.cc.
What’s next
Written 20 July 2026 · tweet numbers as of 20 July · this page is unlisted - please don’t share the link