Most high performers are excellent at work and mediocre at recovery. Sleep runs short, stress runs long, and the body gets whatever is left over. The sauna is one of the few tools that asks for nothing but time. You sit in the heat, you sweat, and the nervous system finally stands down. People turn to it for relaxation, muscle recovery, and deeper sleep, which is why it has moved from the locker room into the home. The payoff compounds the longer you keep showing up.
Infrared takes the idea further. Rather than heating the air to punishing temperatures, it warms the body directly, so sessions stay comfortable at lower ambient heat. Clearlight’s patented True Wave heaters pair carbon and ceramic to reach the wavelength the company says the body absorbs best. University research supports the broader case. A Loras College study found significantly improved recovery after maximal aerobic exercise, and a Binghamton University study reported an average of 4 percent less body fat over four months among participants who used the saunas three times a week for 30 minutes.
Here is the catch. The best sauna is the one you actually use, and most fall short because they are cramped, inconvenient, or an eyesore. Clearlight, founded in 1997 by chiropractic physician Dr. Raleigh Duncan, has spent nearly three decades solving that problem. The Sanctuary Outdoor 5 is the clearest answer yet, and it earns the title of best of the best.
Start with the space. The interior runs nearly 78 inches wide and seats five adults, so it works as a solo reset or a gathering with friends. The weather-resistant DriftwoodTec exterior is made for the yard, while the mahogany interior keeps the feel of a proper sauna. Four 500-watt full spectrum heaters face you, with far infrared heaters behind, beside, and beneath you, so the warmth surrounds rather than blasts. A chiropractor-designed backrest, twelve-color chromotherapy, Bluetooth audio, and a simple digital keypad remove every excuse to skip a session. The heaters are engineered for some of the lowest EMF and ELF levels available, and the unit plugs into a 240-volt outlet. The residential warranty is for life.
Heat is half the equation. Light is the other. Vitamin D is produced when skin is exposed to UVB, and sunlight remains the most efficient source. Citing National Institutes of Health data, Clearlight notes that about 42 percent of U.S. adults are clinically deficient, a number that tracks for anyone who works indoors.
SUN ONE is built for that gap. This compact, rechargeable lamp uses narrow-band LEDs peaking at 295 nanometers, a wavelength studied for its role in supporting the body’s natural vitamin D production. Because UVB demands respect, the design is cautious. A distance sensor flags when you are too close or too far, voice prompts tailor each session to your Fitzpatrick skin type, a spoken reminder calls for the included protective eyewear, and the lamp allows one session per day. It sits on a tabletop or rides into the sauna on its articulating arm. Clearlight is clear that SUN ONE is not a medical device and makes no medical claims.
Together, the two reflect what Clearlight calls therapy stacking: layering heat, light, color, and aroma into time you have already set aside. The company was first to bring red light therapy into the sauna, and a red light upgrade is available for the Outdoor 5. SUN ONE carries a five-year warranty. Make the practice beautiful, make it simple, and it becomes a habit. That is what the best of the best looks like.
