About the book

we spend a third of our lives asleep — and design almost none of it. we design our mornings, our workouts, our work. sleep gets whatever is left.

designing sleep flips that. it treats rest as a design problem: the evening as an interface, the bedroom as a product, the night as a system with inputs you can actually shape.

a modern guide to better rest — practical, calm, and written from tokyo, where ending the day well is a craft of its own.

Follow the journey

chapters in progress, research notes, and launch updates — shared first in my newsletter, joyful journey 楽しい旅.