Re-Time Pty Ltd has launched its Kickstarter campaign for the Retimer 3 light therapy wearable to improve sleep quality, reduce stress, and improve productivity. The device uses blue-green light similar to the peak colors in a bright blue sky to activate cells in the retina of the eye responsible for helping control one’s body and sleep cycles for better health.

The human body, as well as many animals, has a natural body rhythm called the circadian cycle. Changes to wakefulness, performance, digestion, and more occur around the same time during each cycle. Disruptions to this cycle, such as from alcohol, jet lag, or raising children, can lead to poor health due to poor sleep, depression, and more. Blue light exposure has been broadly studied due to the increased use of electronics that emit a lot of blue light from displays, as well as the growing awareness that blue light exposure affects health.

Daily, timed use of the Retimer 3 for 30 to 45 minutes triggers a reset response in the body. The device uses blue-green light similar to the peak colors in a bright blue sky to activate retina cells in the eye to control circadian and sleep cycles. The exact ways light affects body and sleep cycles are not yet known, so not every user will benefit.

The smartphone apps help users track their progress and are integrated with Android Health Connect and Apple Health. This allows users to track their health in one place when using a range of health trackers and information from various sources.

The Retimer 3 weighs 1.27 ounces (36 g) and measures 6.8 x 6.5 x 0.97 inches (174 x 166 x 25 mm). Four 500-504 nm blue-green LEDs emit light at 506 lux/m2 or 204 uW/cm2. The wearable is powered up to 5.6 hours from a 3.7 V 160 mAh rechargeable lithium battery. The device comes with three nose piece sizes, a USB charging cable, a soft pouch, and a travel case.

Kickstarter pre-launch pricing varies from $109 to $199 for a single unit, and the availability of these offers can change at any time. Naturally, some have found that going out for a morning walk every day while enjoying the natural sunlight is the best way to stay regular and healthy. Readers trying this can wear nice walking shoes (like these on Amazon). For the rainy or snowy days, readers can try a sunlight lamp (like this one on Amazon) every morning while stuck indoors.