retimer 3 now available on 
in Japan
in Japan in JapanAt Re-Time Pty Ltd, our mission is to help people sleep better, feel better, and live better guided by the latest in sleep science.
Formed in 2010, Re-Time was a collaboration between Motherson, a global leader in design, engineering, and manufacturing, and Flinders University, home to the world-renowned Adelaide Institute of Sleep Health (AISH). Our foundations are built on decades of research, innovation, and a commitment to transforming sleep health worldwide.
Our Origins in Sleep Science
The story began in 1987, when Professor Leon Lack and Dr Helen Wright at Flinders University pioneered research into light therapy and circadian rhythms. Their work led to the development of the world’s first wearable green-blue light therapy device, and ultimately to the creation of Re-Time Pty Ltd.
Since then, we’ve been dedicated to turning cutting-edge sleep research into accessible, science-backed solutions that improve lives.
Together, these innovations have helped thousands of people worldwide reset their body clocks, improve their sleep, and unlock healthier, more energized lives.
Every retimer light therapy device is assembled in Adelaide, Australia, in a state-of-the-art clean room facility, ensuring the highest standards of quality and precision.
Today, retimer products have been sold in 40+ countries, making us the world’s number one wearable light therapy brand. Our technology continues to grow in demand as more people experience the life-changing benefits of science-driven sleep solutions.
With every innovation, we stay true to our purpose:
Helping the world sleep better, so people can perform, feel, and live at their best.
Light therapy with retimer involves exposure to blue-green light for a prescribed amount of time at a specific time of day. The wave length of the light used has been found to be most effective in changing our ‘body clock’, or circadian rhythm.
Professor Leon Lack received his first degree from Stanford University in the USA and PhD from the University of Adelaide. Since 1971 he has been at Flinders University in the School of Psychology teaching and conducting research in the areas of sleep, circadian rhythms, bright light therapy
and insomnia.
He has received many large research grants, published over 200 refereed articles, books, and book chapters, and given over 250 conference papers in the sleep area.
Since 1992 he has also directed the non-drug treatment program for insomnia at the Adelaide Institute for Sleep Health.
Dr. Lack has also taken an active role in public education about sleep and the body clock through invited lectures, workshops, media presentations, and publication of a popular book on the treatment of insomnia.
He also has patents and is co-inventor of a portable bright light therapy device, retimer for the treatment of a mis-timed body clock. Thus he has integrated his teaching, research, clinical practice, public education roles, and commercial development activities in an attempt to improve public understanding of sleep and to ameliorate the problem of insomnia and circadian rhythm disorders in our society.
Helen is an avid researcher in the areas of sleep, circadian rhythms and insomnia. Her research at Flinders University pioneered the different wavelengths of light (colours) effects on the re-timing of the body clock. Consistent with other contemporary research from other labs, her work confirmed that blue and blue-green light were the most effective for re-timing the body clock. She is particularly interested in cognitive behaviour therapy for insomnia and bright light therapies for the treatment of insomnia experienced by adolescents and adults.
Helen is author on a number of peer-reviewed journal articles. She has also co-written a book for the general public describing how to improve sleep and daytime functioning.
Helen earned her PhD from Flinders University of South Australia, and also holds a Masters in Psychology (Clinical).
retimer is designed, engineered & manufactured by the Motherson facility in Australia in collaboration with Flinders University.
