THE BALLAST PRINCIPLE

Free Β· Private Β· In your browser

All tools

Sleep Cycle Calculator

Sleep cycle calculator: enter your wake-up time and get the best bedtimes based on 90-minute sleep cycles plus time to fall asleep. Free and instant.

Sleep Debt Calculator

Add up your last week of sleep and see your sleep debt in hours, what it does to you, and a realistic recovery plan. Free, instant, private.

Caffeine Half-Life Calculator

Caffeine half-life calculator: enter your coffee and timing to see how many mg are still in your system at bedtime, with fast/slow metabolizer settings.

White Noise

Clean, generated white noise with a sleep timer and volume fade. No loops, no ads in the audio, works offline β€” free in your browser.

Brown Noise

Deep, low-frequency brown noise generated live in your browser β€” the warm rumble many people find steadier than white noise. Sleep timer included.

Pink Noise

Balanced pink noise generated in your browser β€” softer highs than white noise, studied for sleep quality. Free, with a fade-out sleep timer.

Ocean Sounds

Slow, rolling ocean waves generated live β€” no loop seams, no video ads. The sound of ballast doing its work. Free with a sleep timer.

Rain Sounds

Soft, steady rain generated in your browser β€” endless, seamless, and free, with a sleep timer and volume fade for drifting off.

Insomnia Self-Check

A free, private sleep-habits self-check: nine questions on how you sleep and what surrounds it, with an instant read and practical next steps. Answers stay on your device.

Nap Calculator

Find your ideal nap: the best time of day based on when you woke up, and exact alarm times for a 20-minute power nap, 60-minute recovery nap, or full 90-minute cycle.

Caffeine Cutoff Calculator

Get your personal caffeine cutoff time: enter tonight’s bedtime, your usual drink, and your metabolism, and see the latest time to drink it without it touching your sleep.

The Steadiness Log

A private anxiety tracker from The Ballast Principle: five 1–5 questions, a /25 baseline, and a quarterly trend chart stored only on your device.

Box Breathing

Guided box breathing in your browser: a calm 4-4-4-4 visual you can follow for one minute or ten. Used by military and first responders to steady the nervous system.

4-7-8 Breathing

Guided 4-7-8 breathing: inhale 4, hold 7, exhale 8, with a calm visual pacer. The long exhale is the fastest lever your nervous system has.

5-4-3-2-1 Grounding

The 5-4-3-2-1 grounding technique, guided step by step: five things you see, four you can touch, three you hear, two you smell, one you taste.

The Worry Timer

Give every worry an appointment: capture it, set when you'll deal with it, and run a contained worry session with a timer. A classic CBT technique, private in your browser.

The Ballast Method

Run the four beats from The Ballast Principle on whatever is making you anxious right now: Read it, Check what it is good for, Trim one thing, and Sail.

The Weather Check

Five questions that tell a real worry from a false alarm: target, proportion, sleep test, action test, exit. From Chapter 8 of The Ballast Principle.

Window of Tolerance

An interactive guide to the window of tolerance: locate whether you are keyed up, settled, or shut down right now, and get regulation moves to come back and widen your window.

Breathing Pacer

Practice coherent breathing and paced breathing with a visual pacer you can tune: 5-5 resonance rhythm, extended exhale, box, 4-7-8, or fully custom. Free and private.

Mood Tracker

A free, private mood tracker: log today in one tap and watch the trend build over weeks. One bad day is weather; a month is a chart. Everything stays on your device.