OIO Loop helps you see the light spectrum in your environment. Knowing what your light environment is will help you understand if the light you’re in is helping or hurting your boiological clock. Blue light is essential during the day to help you stay alert, but at night, you do’t want this wavelength around you because it signals your biology that it’s still daytime – encouraging wakefullness. Use your Loop to ensure there is an absence of blue light at night so your biology is getting the natural signals to winddown and prepare for sleep.