Dozofy
Free sleep cycle calculator, 16 tools, 7 languages
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Calculate your ideal bedtime or wake-up time based on 90-minute sleep cycles. Free tools: nap, sleep debt, cycles. No sign-up.
PH · launched Sep 30, 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
- Vertical SaaS
- B2C
- Not AI
- Commercial product
- Health & Fitness
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 collection of sleep cycle calculators based on elementary mathematical formulas (adding/subtracting 90-minute increments) wrapped in a static website.
Competitors
Other products that read as similar to this one : 403 launches clear the similarity bar, closest 8 shown.
Attention rank: #326 of 404 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 320 days after the earliest competitor.
- Sleep Time Calculator · ph · 2026-09-22 · 1 upvotes · similarity 0.81
- Sleep Cycle Calculator · ph · 2026-09-21 · 1 upvotes · similarity 0.80
- Sleep Cycle Calculator · ph · 2026-10-15 · 2 upvotes · similarity 0.79
- Sleep Cycle Calculator · ph · 2026-10-18 · 1 upvotes · similarity 0.75
- AllSleepCalculators · ph · 2026-10-21 · 1 upvotes · similarity 0.74
- Sleep Hours Calculator · ph · 2026-10-30 · 4 upvotes · similarity 0.74
- Nurtavia Sleep Calculator · ph · 2026-10-25 · 1 upvotes · similarity 0.73
- sleepcalculator · ph · 2026-10-22 · 1 upvotes · similarity 0.58
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.