nemui

Tags:
sleep,
interactive,
web app,
web,
JavaScript

nemui is a web app that helps you smoothly transition to a new sleep schedule. Named after the Japanese words for sleep (眠nemu) and transition (移i), reading as 眠いnemui (sleepy).

Try it now • GitHub • Blog post

Features

Interactive clock interface inspired by Apple
Gradual sleep schedule adjustment based on sleep science
Full Daylight Saving Time (DST) support
Calendar (.ics) export with bedtime reminders
Local storage for progress tracking
Accessible: supports keyboard navigation and screen readers

Why nemui?

Unlike abrupt changes that can disrupt your circadian rhythm, nemui helps you adjust your sleep schedule gradually. It’s particularly useful for:

Adapting to new work/study schedules
Preparing for timezone changes
Smoothly transitioning through DST changes
Fixing a misaligned sleep schedule