Hourglass - Hourglass is the most advanced simple countdown timer for Windows.
Sleep Watch - AI-powered, personalized insights about your sleep.
wnr - Better than pomodoro, this timer app balances work and rest.
Enough Sleep - Boost your performance by getting enough sleep!
Free Countdown Timer - Free Countdown Timer is a free, full-featured and user-friendly countdown timer for Windows
Sleepfulness - The beautifully effective sleep app, powered by mindfulness.