In dire need of sleep, you may be tempted to reach for a quick solution— a sleeping pill. Unfortunately, over-the-counter-sleep medications do not always solve the problem safely. In most cases, it may cause more harm than good. But what if there was an innovation that could help you sleep better without leaving any side effects in the long run? Red light therapy is a terrific way to improve the quality of your sleep, particularly for people who sleep lightly, battle insomnia, or have limited time to sleep, with minimal to no risks.

Red light therapy is a non-invasive therapeutic technique that uses low-intensity wavelength or near-infrared light to stimulate cells to work better by activating the mitochondria (powerhouse of cells). Scientists have proven that aside from enhancing sleep quality, red light therapy is good for skin health, wound healing, pain relief, and hair growth, to mention a few. 

Understanding Red Light Therapy for Sleep Enhancement:

Light plays a significant role in the body’s internal clock responsible for your 24-hour sleep and wake cycle—the Circadian rhythm. When lights hit your eyes, specifically white and blue lights, your body naturally responds by staying awake. That is why bright lights from the sun and artificial blue lights from TVs, smartphones, Laptops, and other screens make it difficult to sleep at night. Red light has the opposite effect since it is on the opposite end of the spectrum.

The theory is not based on the color of the light but on its wavelength. Compared to blue light, red light has a lower frequency and carries less energy. Research studies have found that red light emits shorter wavelengths that stimulate the production of melatonin hormone. Melatonin, also known as the sleep hormone, is a naturally occurring chemical released at night or dark to aid sleep.


A 2012 study to determine the impact red light has on sleep quality and endurance performance of 20 Chinese women basketball players confirmed that irradiation of the body with red light was effective in improving the sleep quality of the athletes. They noticed that after a 14-day irradiation therapy, the red light prevented sleep disorders by increasing serum melatonin levels.

Another study has shown that red light therapy can help combat jet lag symptoms like insomnia, fatigue, and lack of concentration by shifting the timing of the circadian system.


There are several red light therapy at home devices on the market. For best results, look for devices that emit wavelengths not less than 630 nm or more than 1200 nm. These specific wavelengths give off ‘strong’ but safe radiation required to improve sleep quality.

Secondly, timing is paramount for the expected result. According to this study, melatonin production starts 2 hours before habitual bedtime. Using your red light device within this timeframe, preferably 2 hours before bedtime, increases melatonin produced, improving sleep quality and duration.

The process is simple: Sit or lie quietly under the red light, and the results will follow.


  1. It helps maintain a healthy body weight.
  2. Reduces your risk for chronic health conditions, like hypertension and diabetes
  3. Improves mood and reduces stress
  4. It is essential for memory retention and concentration
  5. Improves your immune system
  6. Regular high-quality sleep enhances skin appearance


Finding the best red light device can be a bit of a headache, but here’s the deal: Bestqool simplifies the entire process. We’ve got everything you need conveniently located in one place to make your sessions a whole lot smoother. With Bestqool, you are guaranteed a safe and effective wavelength of therapeutic red light to your cells; Bestqool’s devices have the stamp of approval from the FDA, CE, FCC, and ETL. They also release the recommended wavelengths of 630nm, 660nm, 850nm, and 940nm necessary to achieve the expected result of high-quality sleep and duration without any long-term consequences.


Burgess, H. J., and Eastman, C. E. (2005). The dim light melatonin onset following fixed and free sleep schedules. J. Sleep. Res. 14, 229–237.

doi: 10.1111/j.1365-2869.2005.00470.x

Liu J., Van Iersel M. (2021). Photosynthetic Physiology of Blue, Green, and Red Light: Light Intensity Effects and Underlying Mechanisms. Front. Plant Sci. Volume 12

Roach, G., Sargent, C. (2019). Interventions to minimize jet lag after westward and eastward flight. Front.Physiol., Sec Chronobiology Volume 10.

Wunsch, A., & Matuschka, K. (2014). A controlled trial to determine the efficacy of red and near-infrared light treatment in patient satisfaction, reduction of fine lines, wrinkles, skin roughness, and intradermal collagen density increase. Photomedicine and laser surgery, 32(2), 93–100.

Zhao, J., Tian, Y., Nie, J., Xu, J., & Liu, D. (2012). Red light and the sleep quality and endurance performance of Chinese female basketball players. Journal of athletic training, 47(6), 673–678.

Categories: Health

Nicolas Desjardins

Hello everyone, I am the main writer for SIND Canada. I've been writing articles for more than 12 years and I like sharing my knowledge. I'm currently writing for many websites and newspapers. I always keep myself very informed to give you the best information. All my years as a computer scientist made me become an incredible researcher. You can contact me on our forum or by email at [email protected].