"Test review from authenticated non-admin - great app!"TestReviewer · doctor
"Target review for admin reply testing."Reply Target · pilot
"Authenticated review — should be verified."Auth Tester · doctor
"Unauthenticated review test payload."Anon Tester · nurse
"Five overnight shifts a week wrecked me. Two months in on CircaShift I'm sleeping longer and my mood is night and day."Jamal K. · security
"Alertness scoring flagged two early turns I was underestimating. Now I plan a nap the day before instead of white-knuckling coffee."Tomas N. · train driver
"Cabin crew life is chaos — layovers, red-eyes, time zones. Being able to plug in real flight legs and see anchor sleep laid out is huge."Elena V. · steward
"Circa recommended a 20-min pre-shift nap I was skipping. First night in months I didn't crash at 3am. Streak: 14 days."Priya R. · nurse
"Jet lag mode saved me on a BOM–LHR–JFK triangle. Pre-adapt bedtimes worked exactly as planned. Best chronobiology tool I've used."Marcus T. · pilot
"I run three 12h nights in a row and the anchor-sleep timing finally clicked. Sleep debt tracker is scarily accurate."Dr. Sarah C. · doctor
"Test review from authenticated non-admin - great app!"TestReviewer · doctor
"Target review for admin reply testing."Reply Target · pilot
"Authenticated review — should be verified."Auth Tester · doctor
"Unauthenticated review test payload."Anon Tester · nurse
"Five overnight shifts a week wrecked me. Two months in on CircaShift I'm sleeping longer and my mood is night and day."Jamal K. · security
"Alertness scoring flagged two early turns I was underestimating. Now I plan a nap the day before instead of white-knuckling coffee."Tomas N. · train driver
"Cabin crew life is chaos — layovers, red-eyes, time zones. Being able to plug in real flight legs and see anchor sleep laid out is huge."Elena V. · steward
"Circa recommended a 20-min pre-shift nap I was skipping. First night in months I didn't crash at 3am. Streak: 14 days."Priya R. · nurse
"Jet lag mode saved me on a BOM–LHR–JFK triangle. Pre-adapt bedtimes worked exactly as planned. Best chronobiology tool I've used."Marcus T. · pilot
"I run three 12h nights in a row and the anchor-sleep timing finally clicked. Sleep debt tracker is scarily accurate."Dr. Sarah C. · doctor
Adaptive · Circadian · AI-guided

Sleep that bends
around your shifts —
not the other way.

For doctors, nurses, pilots, cabin crew, train drivers, security teams, couriers, and frequent travelers. CircaShift adapts anchor sleep, caffeine cutoffs, and light exposure in real time as your schedule shifts.

Doctors & Nurses
Pilots
Cabin Crew
Train Drivers
Security
Couriers
Frequent Travelers
Live 24h Timeline
Adaptive schedule
Anchor Sleep22:00 – 05:30
Wind Down21:00 – 22:00
Caffeine Cutoff14:00 – 22:00
Bright Light06:00 – 06:30
Night Shift07:00 – 19:00
Circadian Score82 / 100
Loved by shift workers

What clients say

4.8 · 10 reviews
Verified user

"Test review from authenticated non-admin - great app!"

TestReviewer
Doctor
yesterday
Verified user

"Target review for admin reply testing."

Reply Target
Pilot
yesterday
Verified user

"Authenticated review — should be verified."

Auth Tester
Doctor
yesterday

"Unauthenticated review test payload."

Anon Tester
Nurse
yesterday

"Five overnight shifts a week wrecked me. Two months in on CircaShift I'm sleeping longer and my mood is night and day."

Jamal K.
Security
2d ago
Admin · reply

Thanks Jamal — 2 months is huge, keep the streak going.

"Alertness scoring flagged two early turns I was underestimating. Now I plan a nap the day before instead of white-knuckling coffee."

Tomas N.
Train Driver
3d ago

"Cabin crew life is chaos — layovers, red-eyes, time zones. Being able to plug in real flight legs and see anchor sleep laid out is huge."

Elena V.
Cabin Crew
4d ago

"Circa recommended a 20-min pre-shift nap I was skipping. First night in months I didn't crash at 3am. Streak: 14 days."

Priya R.
Nurse
5d ago

"Jet lag mode saved me on a BOM–LHR–JFK triangle. Pre-adapt bedtimes worked exactly as planned. Best chronobiology tool I've used."

Marcus T.
Pilot
6d ago