SleepSpec is a range of scientifically engineered tools that are used to filter the light (in your immediate environment) that affects your body’s natural clock. Your body’s natural clock is called the circadian rhythm. The circadian rhythm is the natural, 24-hour functioning of body rhythms in which states, such as sleep, wakefulness and energy, are regulated and adapted to suit different times of the day or night. In other words, the circadian rhythm tells your body when to go to sleep and when to wake up, depending on the time of day.
But how does this work? Sunlight resets your body clock every morning to wake you up and get your body ready for the day ahead. The specific bandwidth in sunlight associated with this function is blue light. Blue light inhibits the secretion of melatonin – the sleep hormone that controls your circadian rhythm. When the sun sets, blue light fades and so your body begins to produce melatonin. Melatonin is required for the sleeping process to occur naturally.
Blue light, however, is not just found in sunlight, but is also found in artificial light – light produced by any man-made light source. Artificial light affects your circadian rhythm by telling your body to wake up (this is where many troubles with sleeping begin to develop, as artificial light sources, such as your electronic devices and lighting in your home, are a mainstay of the modern nocturnal routine).
Your circadian rhythm is being interrupted when you are exposed to blue light – specifically – in the evenings, when your body is supposed to be preparing itself for sleep. SleepSpec (when worn in the evening) prevents this from happening by blocking out blue light. This allows your body to undergo its natural sleep process, setting you up for quality sleep.