Rocean
AI.

Cold water works. Knowing when, how long, and how cold — that's what Rocean AI does.

Today's answers Live
Should you plunge today?
Based on last night's recovery
Yes
How long?
Your body is well recovered
3 min
How cold?
Calibrated to your response history
8°C
Why
You slept well and your nervous system has recovered. This is a good window — whenever you're ready.

Three questions.
Every morning.

Should I plunge today? How long? How cold? Most people guess. Rocean AI reads your overnight data and answers all three — before you even get up.

01 — While you sleep

Your wearable reads your night

The device you already wear captures everything overnight — heart rhythm, sleep depth, recovery. Silently, without any input from you.

Apple Watch · Oura · WHOOP
02 — In the morning

Rocean translates what your body is saying

Not numbers to decode. Plain language — how rested you are, what your body seems to need today. No interpretation required.

No input needed
03 — Before you arrive

The bath adjusts to your temperature.

Rocean shifts the target to your protocol for today. No action from you. Ready when you are.

Automatic · No setting to adjust
04 — You step in

The screen guides you. The sound holds you.

The front screen shows the breathwork sequence for today. A soundscape begins. Everything you need — without touching your phone.

Screen · Sound · Guided breathwork
05 — You step out

Everything is logged — you do nothing

Duration, temperature, time. Captured automatically and saved to your health history. No app to open, nothing to fill.

Auto-logged · Apple Health sync
06 — It learns

It learns what works. For you, specifically.

Rocean cross-correlates your session data with your sleep and recovery metrics from the nights that follow. Over 30 to 50 sessions, patterns emerge that belong to you alone — not someone else's average.

↺ The cycle continues
The longer you use it, the better it knows you.
OVERNIGHT · WEARABLE DATA HEART RATE VARIABILITY LIGHT DEEP REM BLOOD OXYGEN 98% APPLE WATCH OURA RING WHOOP
ROCEAN AI · READING SLEEP Good HEART Calm BODY Ready TODAY'S SUGGESTION 8°C · 3 min Whenever you're ready
PREPARING · ROCEAN OS 8 °C COOLING TO TARGET 76% READY WHEN YOU ARE
IN SESSION SESSION 4 – 4 Breathe 3:00 min 8°C WEARABLE ✓ SOUNDSCAPE
SESSION COMPLETE Session logged 09:42 · 3 min · 8°C Apple Health ✓ Session history ✓ Recovery log ✓ Tomorrow updated ✓ NOTHING TO FILL IN You're done. That's it.
LEARNING · OVER TIME S1 S3 S6 S9 S12 S15 today PRECISION

No more
guessing.

Your body already knows. Rocean AI teaches you to read it. Most protocols are borrowed from the internet or driven by gut feeling — and gut feeling is often right. The goal isn't to replace that instinct. It's to give it data.

01
Should I plunge today?
Your body gives signals overnight. Rocean reads them and gives you a clear answer.
02
How long should I stay in? How cold?
Not 3 minutes because someone on the internet said so — 3 minutes because your recovery data today says so. The temperature that's right for your body today, not a fixed number, not the coldest you can handle.
03
Is it benefiting me?
Not a feeling. Your sleep scores, your recovery trends, your data — session after session.
Without → With Rocean AI
Before
Slept badly. Skip it? Push through? No idea.
After
Recovery's low. Rocean says yes — 12°C, lighter today.
Before
Same time, same temp. Whatever the video said.
After
2 min at 12°C. Today's data, not a fixed rule.
Before
Opens app. Sets temperature. Forgets to log it.
After
Walks in. Session auto-logged. Done.
Before
No idea if it's working. No proof.
After
Sleep and recovery trends, session after session.

Why 8°C today
and not 12°C.

Rocean AI weighs four signals every morning. Each one shifts the protocol. Together, they produce a recommendation that's specific to you, today — not a generic protocol for "someone your age."

Sleep quality
How deeply you recovered overnight
Strong
Heart rate variability
Your nervous system's recovery state
Elevated
Recent session history
How your body responded last time
3 days ago
Training load
Physical stress from the past 48 hours
Low
Pattern detected
Your deepest sleep follows your morning sessions.
Rocean spotted it across your last weeks — today's suggestion: morning, while your recovery window is open.
Today's protocol
All signals point to a strong recovery window. Go cold, go longer.
8°C
3 min

You start to
understand yourself.

Something shifts. You sleep better. You wake with more clarity. You feel it before you see it.

Sleep quality · 7-day average
78 92
Across 12 sessions · 30 days
Heart rate variability · overnight
42ms 51ms
Across 12 sessions · 30 days
Resting heart rate · on waking
64 58bpm
Across 12 sessions · 30 days

Early access · September 2026

Be among
the first.

Early access subscribers help shape the protocol library, receive priority setup support, and are the first to experience Rocean AI when it launches in September 2026.