About Rest Window

Rest Window by Somna is a collection of free, science-based sleep calculators designed specifically for people who don't have the luxury of a "normal" schedule.

Our Mission

We believe that quality sleep shouldn't be a privilege reserved for those with 9-to-5 jobs. Shift workers, healthcare professionals, first responders, and travelers all deserve tools that work with their reality, not against it.

Traditional sleep advice often assumes you can simply "go to bed at 10pm and wake up at 6am." But for the millions of people who work nights, rotate between shifts, or travel across time zones, this advice is useless at best and frustrating at worst.

The Science Behind Our Tools

Our calculators are built on established sleep science principles:

• Circadian rhythm research - Understanding your body's internal clock and how to work with it
• Sleep cycle optimization - Aligning wake times with natural 90-minute cycles
• Sleep debt management - Strategies for recovering from accumulated sleep deficits
• Light exposure timing - Using light to shift your internal clock when needed

Who We Help

Our tools are designed for:

• Night shift nurses, doctors, and healthcare workers
• Factory workers on rotating schedules
• First responders and emergency personnel
• Pilots, flight attendants, and frequent travelers
• Parents with newborns and irregular sleep patterns
• Anyone whose schedule doesn't fit the textbook mold

Privacy First

We don't require accounts or track your personal data. All calculations happen in your browser, and we don't store your schedule information. Your sleep data is yours alone.

Get in Touch

Have questions, feedback, or suggestions? We'd love to hear from you. Visit our contact page to reach out.