Calculator Blog

Sleep Calculator Blog — Bedtime & Sleep Cycle Guides

Science-backed articles on sleep cycles, bedtimes, and building better sleep habits — free tools and guides for every age.

Sleep calculator for kids — child sleeping peacefully showing bedtime by age
Kids & Teens

Sleep Calculator for Kids — Bedtime by Age 2026

Find the perfect bedtime for your child based on their age. Covers infants, toddlers, school-age kids, and teenagers. Free tool + AASM guidelines.

May 2026 5 min read
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Night shift sleep schedule showing alarm clock and optimal daytime sleep times for nurses and factory workers
Shift Workers

Night Shift Sleep Schedule — Best Sleep & Wake Times 2026

Best sleep and wake times for 8 and 12-hour night shifts. Science-backed tips for nurses, factory workers and night owls. Includes free tool.

May 2026 6 min read
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