Although it's fine to be sleeping with red lights on because red light doesn't interfere with your sleep the way blue light (regular white light does), the healthiest way to be sleeping is in complete darkness.
Red light has no effect on the circadian clock, so you can use a dim red light at night. Yellow and orange light have little effect on the clock so you can use a very dim yellow or orange light at night.
Red light's impacts on sleep
“And that may be what leads to better sleep.” Since red light doesn't affect the circadian system, the potential for red light to induce alertness, as Figueiro found in her research, is “most likely affecting your brain through pathways other than the biological clock,” she said.
Red light therapy for eyes is a safe, natural, and effective treatment for a surprisingly wide variety of conditions and disorders, including--you guessed it--your eyes. Unlike other powerful light sources, such as the sun, red light specifically promote proper function without any negative side effects.
Light from electronic screens comes in all colors, but the blues are the worst. Blue light fools the brain into thinking it's daytime. When that happens, the body stops releasing a sleep hormone called melatonin. Melatonin is nature's way of helping us wind down and prepare for bed.
Research studies discovered red to be the best color light to help you sleep, because it increases production of melatonin as well as full darkness. On the other end of the spectrum, blue is the worst. Despite being a calm-inducing color on most occasions, blue is not suitable for lighting a bedroom.
The best night light colors for sleep are red and amber, as they are warm and soothing colors that promote a good night's sleep. It's thought that colors close to red on the light spectrum stimulate melatonin production. Red light has a lower color temperature than regular sunlight, making it ideal for sleep.
Red light is by far the superior choice when choosing a nightlight that won't disrupt your circadian rhythm. Naturally, waking up in the middle of the night isn't ideal regardless, however, exposing your eyes to red light will be better than blue or green.
The red light emitted from these flashlights allows military personnel to see in the dark without compromising their ability to see in low-light conditions. The red light also helps maintain a low profile and avoid enemy detection.
Photographic paper reacts to light to produce the image taken by a camera and stored on film. Darkrooms used red lighting to allow photographers to control light carefully so that light-sensitive photographic paper would not become overexposed and ruin the pictures during the developing process.
Making your sessions too short or too long
The general rule is to have your sessions range anywhere from 10-20 minutes, but you can play around with this too. Every body is different, after all, and reacts to treatment in its own way.
RED—A red signal light means STOP. A right turn can be made against a red light ONLY after you stop and yield to pedestrians and vehicles in your path. DO NOT turn if there is a sign posted for NO TURN ON RED. FLASHING RED—A flashing red signal light means exactly the same as a stop sign: STOP!
How often should I receive red light therapy? For best results, we recommend the following red light treatment regimen: 3-5 treatments per week during the first 4 weeks. 2-3 treatments during the next 4 to 8 weeks.
Red light therapy, specifically, has the potential to assist in “treating acne, reducing inflammation, decreasing healing time after certain procedures, stimulating hair growth and general skin rejuvenation,” said Dr. Nkem Ugonabo, a board-certified dermatologist at Union Derm in New York City.
Red. Red has always been associated with health, vigor, and love and has increased metabolic activity. This trait makes it the perfect appetite accelerator and a prime color for drinks. Being associated with the red color means raised temperature and blood pressure, which leads to increased thirst.
Blue light
According to a 2017 study in the scientific journal PLOS ONE (9), blue lighting “accelerates the relaxation process after stress in comparison with conventional white lighting.” This study found that stressed people immersed in blue light relaxed three times as quickly as in white light.
While blue reigns as the most calming hue of all, other shades that conjure images of sunsets and silvery lakes are also known to be excellent for inducing sleep. These include earthy greens, dusty soft yellows, light clay browns, soft oranges, and natural pinks.
Yellow and orange are colors that make people feel hungry. The color red is associated with emotion and passion. So when one sees red combined with yellow and orange, they become passionately hungry.
Research shows high bluish white light levels in the morning hours might be beneficial for elderly people living with sleep struggles or depression. “Light therapy can activate serotonin in the brain and helps regulate melatonin levels needed for sleep.
Happy colors are usually thought to be bright, warm shades, like yellow, orange, pink and red, or pastels, like peach, light pink and lilac. The brighter and lighter the color, the happier and more optimistic it can make you feel.
Use dim red lights for night lights. Red light is less likely to shift circadian rhythm and suppress melatonin. Avoid looking at bright screens beginning two to three hours before bed.
Researchers have found the color blue induces feelings of tranquility and peacefulness, the opposite of anxiety. A blue room doesn't alert the mind, and instead, promotes calm, so you feel more at ease—you're likely to fall asleep and stay asleep than you would if sleeping in a brightly-painted bedroom.
The best night light colors for sleeping are red light and amber light as they are warm relaxing colors that promote good sleep. Avoiding artificial blue light and bright lights in the evening can definitely help you avoid sleep related issues such as insomnia.