SleepCalc
SleepCalc is a sleep-cycle calculator that recommends optimal bedtimes and wake-up times based on 90-minute sleep cycles. It accounts for sleep latency and includes guides explaining sleep stages, duration and sleep inertia.
TypePersonal product
RoleDesign & Development
ServiceWeb Development, UX Writing, SEO
Overview
SleepCalc helps people pick a bedtime or wake-up time that lines up with natural sleep cycles instead of guessing.
It pairs a fast calculator with plain-language guides, so people understand the reasoning behind the numbers.
What I Built
Cycle-based recommendations
Recommendations are built on 90-minute sleep cycles and account for the time it takes to fall asleep.
Guides that explain why
Short guides cover sleep stages, sleep duration and sleep inertia, making the tool useful beyond a single calculation.
Error State Handling
How a website should behave when things go wrong.
