No. 01  ·  First edition  ·  2026
Sleep Again
Author

Joakim Achrén.

A Finnish entrepreneur with 20 years of founding companies and 6 years of investing in startups. He has built companies in gaming, technology, and media, and has experienced firsthand how the demands of entrepreneurship erode sleep quality over time.

Joakim Achren, author of Sleep Again and entrepreneur

After years of early-morning insomnia triggered by the stress of building and investing in companies, Joakim spent several years researching sleep science and testing strategies on himself. He interviewed dozens of founders about their sleep struggles, studied peer-reviewed research, and developed practical tools for the unique challenges entrepreneurs face.

Sleep Again distills everything he learned into a practical sleep guide for founders. The book includes 87 endnotes referencing peer-reviewed studies and real-world interviews with entrepreneurs. It covers sleep science, lifestyle habits, mental strategies like the Mental Bouncer Technique, and a practical toolkit for building a better sleep environment.

Joakim is also the author of Long Term Game: How to Build a Video Games Company, a guide for entrepreneurs on building games companies.

He writes about why entrepreneurs struggle with sleep, sleep chronotypes for founders, and other topics at the intersection of entrepreneurship and rest.