Ultraproductive

A revolutionary approach to work and life based on the innovative 90-90-90 method that will boost productivity and transform your everyday routine.

Thriving in today’s overstimulated world has never been harder. We treat ourselves like machines—constantly “on,” multitasking, and never truly unplugging. But this relentless hustle is backfiring: our current idea of productivity is actually making us less effective and more exhausted.

But what if the secret to multiplying your productivity by up to 10x lies not in doing more, but in simply doing three things differently?

In Ultraproductive, authors Eric Partaker and Dr. Christian Poensgen
reveal the transformative power of the 90-90-90 method—a simple but revolutionary approach that addresses three key aspects of productivity and well-being:

Focus: Dedicate just 90 minutes a day to deep, uninterrupted work—and watch your productivity double.

Sleep: Prioritize 90 minutes of deep sleep nightly to supercharge your brain, increasing output by 2.5 times.

Stress: Break stress cycles every 90 minutes to maintain energy and double your effectiveness.

Drawing from cutting-edge research and their combined expertise in psychology and business, Poengesen and Parataker present a practical framework for becoming ultraproductive—not just surviving but truly thriving at work and at home.

Packed with actionable strategies, relatable examples, and fresh insights, Ultraproductive is the essential guide for anyone seeking focus, and fulfillment in an increasingly hectic world.Eric Partaker is one of the world’s leading CEO coaches and obsessed with the intersection of entrepreneurship, leadership, and peak performance. In 2023, Favikon ranked Eric as the number 1 creator in the world in Management & Leadership.
He draws from his time advising Fortune 50 CEOs at McKinsey, his experience helping build Skype’s multi-billion dollar success story, and the over 100 companies he’s helped scale to date — as well as behavioral science from Stanford University. 

Dr. Christian Poensgen is a scientist-turned-writer and coach who sets up executives, entrepreneurs and leaders in high-stress environments for long-term success. Christian holds a PhD (“summa cum laude”) on the interplay between stress and performance.
He worked as the Senior Fellow of the “Future of Work” think tank in the German federal parliament, as Co-Founder & Director of the European Center for Digital Competitiveness by ESCP Business School, and as an Agenda Contributor at World Economic Forum.