Light

Light is a body-clock problem.

Your body reads light to know what time it is. Bright days and dark nights keep that clock on time. Most homes get this backward, and your sleep pays for it. The first entry below breaks down indoor lighting, in the units the clock actually responds to.

Cool LED and bright screens flattened this arc: too dim by day, too bright by night. We measure the light your clock actually reads, then design the home back to it.