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SleepCycler
8 hours of sleep, still exhausted? You're waking mid-cycle
Most sleep calculators just spit out times with no explanation. SleepCycler shows you exactly why each bedtime works — based on 90-minute sleep cycles, your age group, and a 15-minute fall-asleep buffer. Features: bidirectional calculator (wake time or bedtime), Sleep Now button, Sleep Debt Calculator with 7-night tracking and recovery plan, and a full sleep science blog. Free, no signup, no ads.
About SleepCycler on Product Hunt
“8 hours of sleep, still exhausted? You're waking mid-cycle”
SleepCycler was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #471 on the daily leaderboard. Most sleep calculators just spit out times with no explanation. SleepCycler shows you exactly why each bedtime works — based on 90-minute sleep cycles, your age group, and a 15-minute fall-asleep buffer. Features: bidirectional calculator (wake time or bedtime), Sleep Now button, Sleep Debt Calculator with 7-night tracking and recovery plan, and a full sleep science blog. Free, no signup, no ads.
Who hunted SleepCycler?
SleepCycler was hunted by James Hill. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of SleepCycler including community comment highlights and product details, visit the product overview.

