Meet Nocta — Sleep smart through every shift

Health And Fitness

Nocta

Sleep smart through every shift.

What Nocta does

Free. All features included. No subscription, no in-app purchases, no paid tiers — everything works the moment you install it.

Nocta is a circadian-aware shift planner for the 15 million Americans who work non-traditional hours — nurses, EMTs, firefighters, factory workers, pilots, truck drivers.

The science of when to sleep, when to stop drinking coffee, when to get bright light, and when to take melatonin is well-established.

Nocta fixes that.

— Tap to add a shift, or pick from built-in rotation templates (3-on/4-off for nurses, Kelly schedule for firefighters, rotating fortnights, pilot duty days). — Nocta calculates your personalized day-by-day plan: anchor sleep window, caffeine cutoff time, melatonin window (if you take it), bright-light timing. — Calm passive cards on the home screen. No alarms. 'Coffee cutoff in 4h. Anchor sleep window: 14:00–17:00.' — Weekly PDF export: hand it to your partner so they don't wake you during sleep windows.

The science is published in PubMed, AASM clinical guidelines, and Harvard circadian research. Nocta encodes the rules deterministically — no AI, no cloud inference, no surprises. We're not a medical device; we're a planning tool that respects published science.

A look inside

Tap any shot to see the full-resolution version.

What's in it

• Shift roster + templates — Add a shift with start/end time and date. Or one-tap apply a built-in rotation template (3-night/4-day nurse rotation, Kelly schedule firefighter, rotating fortnights oil rig, pilot duty days). Edit any shift after applying a template.
• Daily circadian plan — Home screen shows today's plan: anchor sleep window, caffeine cutoff time, bright-light window, melatonin window (if enabled). Rules are calculated locally from published circadian science — no AI, no cloud.
• Calm notification digest — Single configurable summary notification 2h before each transition (sleep, caffeine cutoff, etc.). No nag alarms. Disable any category.
• Weekly PDF export — One-tap export of the week's shift schedule + circadian plan as a clean printable PDF + CSV. Share via AirDrop to your partner so they know when not to wake you.
• Adherence log + stats — Track when you actually slept vs the plan, when you actually had coffee vs the cutoff. Light, optional. Visible as a weekly trend strip.

Why we built it

15M+ Americans work shifts that disrupt circadian rhythm and increase cardiovascular, metabolic, and mood disorder risk by 30-40% (NIH StatPearls 2024). The leading produc…

Who it's for

Anyone who wants honest tracking without a coach, a subscription, or a streak guilting them at 11pm.

In one line: Sleep smart through every shift.

Try it

Head to the Nocta app page for the full feature list, info table, and support links.

Found a bug, have a feature request, or want to share how you use Nocta? Comments are open below — anonymous is fine.