Sleep Time Calculator
Find your ideal bedtime and wake-up time in seconds
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Free sleep time calculator based on 90-minute sleep cycles. Find your ideal bedtime, best wake-up time, or perfect nap length in seconds. Sleepytime planning made easy — no sign-up needed.
PH · launched Sep 22, 2026 · 1 upvote (top 69%) · 0 views
Niche: alarm clock and sleep apps · 114 launches, 18 in the last 7 days ▲ +64% · Explore this niche →
Category and tags
- Healthcare
- Workflow automation
- B2C
- Not AI
- Hobby / open-source project
- Web App
- Health & Fitness
- Productivity
Visit website ↗ Source listing ↗
More like this: all 114 launches in alarm clock and sleep apps →
Could you build this?
Yes This is a simple interactive calculator that executes basic modular arithmetic based on 90-minute intervals and fixed latency offsets entirely in client-side JavaScript.
Competitors
Other products that read as similar to this one : 764 launches clear the similarity bar, closest 8 shown.
Attention rank: #615 of 765 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 312 days after the earliest competitor.
- Dozofy · ph · 2026-09-30 · 1 upvotes · similarity 0.81
- AllSleepCalculators · ph · 2026-10-21 · 1 upvotes · similarity 0.80
- sleepcalculator · ph · 2026-10-22 · 1 upvotes · similarity 0.59
- Timespanly · ph · 2026-10-17 · 1 upvotes · similarity 0.56
- WakeUp: Alarm Clock & Goals · ph · 2026-09-12 · 2 upvotes · similarity 0.55
- NapRoute · ph · 2026-09-29 · 2 upvotes · similarity 0.55
- Caffeine Timing Calculator · ph · 2026-10-28 · 2 upvotes · similarity 0.55
- Age Calculator · ph · 2026-10-05 · 1 upvotes · similarity 0.54
The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.