Launching today

Nod: Sleep Debt Tracker

Launching today

Track sleep debt and optimize daily recovery offline.

2 followers

Track sleep debt and optimize daily recovery offline.

2 followers

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Nod is a privacy-first, 100% offline utility that calculates your true "Sleep Debt." Unlike bloated trackers, it focuses entirely on the relationship between your actual sleep and biological needs over a 14-night window. Get intelligent bedtime recommendations to pay back your debt safely, all with zero cloud sync or accounts. A one-time Pro upgrade unlocks a tailored, algorithmic recovery plan to safely reduce your sleep debt to zero.

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Launch tags:Android•Health & Fitness•Productivity

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Framer AI AgentsDesign and publish professional sites with AI

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Maker

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Hi Product Hunt! 👋 I’m Kartikeya, the maker of Nod. I built this app because I wanted a structured, quantifiable way to understand my fatigue without relying on invasive wearables or cloud-synced accounts. Most of us don't need another generic sleep score; we just need to know how much sleep we owe our bodies and how to catch up. Here is what Nod does differently: Sleep Debt Focus: It calculates your net sleep debt over a rolling 14-night window. Smart Bedtimes: Gives you intelligent bedtime recommendations to slowly pay back your debt. 100% Offline: Zero cloud sync, no accounts, and no third-party trackers. Your data stays on your device. Tailored Recovery (Pro): Generates a step-by-step mathematical plan to get your debt back to zero. Nod is available now on Android. I’d love to hear your thoughts, feedback, or answer any questions you have about the recovery algorithm!

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3d ago

Forum Threads

p/nod-sleep-debt-tracker

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3d ago

What features would make daily sleep debt tracking effortless for you?

Hi everyone! Now that Nod is live, we re focused on keeping the app as lightweight and distraction-free as possible while making sleep recovery truly actionable.

We d love to hear from the community:

Do you prefer fully manual logging (keeping it 100% offline and battery-friendly) or would you prefer opt-in local sync with Google Health Connect?
What sleep metrics actually help you feel better during the day versus just adding cognitive noise?

Drop your thoughts below every piece of feedback helps shape the upcoming updates!

p/nod-sleep-debt-tracker

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3d ago

Why we ditched generic "Sleep Scores" for rolling Sleep Debt

Most sleep trackers give you an arbitrary score out of 100 based on overnight movement or heart rate, but they don't answer the most critical question: How much biological sleep do you owe your body, and how do you pay it back safely?

With Nod, we focused strictly on a rolling 14-night window to calculate net sleep debt and build mathematical recovery schedules.

Questions for the community:

How do you currently track or handle sleep deficit after a rough week?
Do you find single-night sleep scores helpful, or do they just trigger sleep anxiety (orthosomnia)?

p/nod-sleep-debt-tracker

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3d ago

Building a 100% offline health utility in a cloud-first world

Many modern health apps require an account, cloud connectivity, and telemetry just to calculate basic formulas. We designed Nod with a strict privacy-first, zero-cloud architecture everything stays on your device with no trackers.

Would you like to see exportable local backups (e.g., encrypted JSON/CSV), or is zero-setup local persistence enough?
What other privacy-first health tools do you rely on daily?

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