Science Content Section 3

Light for Sleep

Before sleep, however, these alerting effects need to be minimized, otherwise it will be harder to fall asleep and the quality and depth can be compromised. Exposure to blue-depleted and dimmer light is therefore recommended for as long as possible before sleep. (See our GoodNight and SleepyBaby products)

Sleep and Health Impacts

Sleep is vital for good health. In the short-term, poor sleep leads to sleepiness, fatigue and poor performance, which can impact safety and performance at work or while driving. The American Academy of Sleep Medicine recommends a minimum of 7 hours per night in adults, although often people need more to maintain optimal performance. Sleep should be prioritized each and every night, as it’s very hard to ‘catch-up’ on sleep, even on weekends.

Longer-term, sleep deficiency has been linked to an increased risk of high blood pressure, heart disease, stroke, diabetes and some types of cancer. There is also a strong relationship between poor sleep and mental health, including the risk of depression. These risks are exacerbated in individuals who routinely sleep poorly, for example in shift workers; and the World Health Organization has designated shiftwork that causes circadian desynchrony a ‘probable carcinogen’. Sleep should be considered one of three pillars of good health, along with diet and exercise, and should be prioritized as part of a healthy lifestyle.