An award-winning spa in San Franciscio’s Presidio for over 20 years.
This 30-minute session uses sustained infrared heat to raise core body temperature — exercising the heart, temporarily lowering blood pressure, and improving circulation in a way that mirrors moderate movement, without any impact on the joints. It's a low-effort way to support heart health and complement an active lifestyle, and a natural fit for anyone building a consistent wellness practice. Book it as a stand-alone visit or pair it with a massage or facial. People have used heat and sweat as care for centuries — Finnish saunas, sweat lodges, steam rooms. The instinct behind all of them is the same: warmth helps the body do what it already knows how to do. Infrared is the modern version of that instinct, refined by technology and shaped by clinical research. It works differently than a traditional sauna. Instead of heating the air to 150 degrees or more, infrared light warms the body directly at a comfortable 110–140°F — producing a deeper sweat at a gentler heat, in a session you can actually settle into. The warmth feels closer to sunlight on skin than to a hot room. Our private Sunlighten mPulse saunas deliver three infrared wavelengths, each working at a different depth. Near infrared supports skin health and cell renewal at the surface. Mid infrared reaches soft tissue to support circulation and muscle recovery. Far infrared penetrates deepest, raising core body temperature — clinically shown to increase it by up to three degrees — to drive the sweat behind detoxification, immune support, and cardiovascular benefit. Every session is programmed to a purpose. Choose from six programs built on clinical research — Relaxation, Cardio, Muscle Recovery, Detox, Anti-Aging, and Weight Loss — each blending wavelengths at the right dose for that goal. Chromotherapy lighting adds a gentle layer: choose the color that matches how you want to feel, or let the spectrum cycle. Sessions run 30 to 40 minutes, on their own or paired with a massage or facial. One session leaves most guests feeling light, clear, and energized. The research is clearest about what happens with consistency — the benefits build with regular use, which is why many guests make the sauna a weekly practice rather than an occasional fix.This 30-minute session uses sustained infrared heat to raise core body temperature — exercising the heart, temporarily lowering blood pressure, and improving circulation in a way that mirrors moderate movement, without any impact on the joints. It's a low-effort way to support heart health and complement an active lifestyle, and a natural fit for anyone building a consistent wellness practice. Book it as a stand-alone visit or pair it with a massage or facial. People have used heat and sweat as care for centuries — Finnish saunas, sweat lodges, steam rooms. The instinct behind all of them is the same: warmth helps the body do what it already knows how to do. Infrared is the modern version of that instinct, refined by technology and shaped by clinical research. It works differently than a traditional sauna. Instead of heating the air to 150 degrees or more, infrared light warms the body directly at a comfortable 110–140°F — producing a deeper sweat at a gentler heat, in a session you can actually settle into. The warmth feels closer to sunlight on skin than to a hot room. Our private Sunlighten mPulse saunas deliver three infrared wavelengths, each working at a different depth. Near infrared supports skin health and cell renewal at the surface. Mid infrared reaches soft tissue to support circulation and muscle recovery. Far infrared penetrates deepest, raising core body temperature — clinically shown to increase it by up to three degrees — to drive the sweat behind detoxification, immune support, and cardiovascular benefit. Every session is programmed to a purpose. Choose from six programs built on clinical research — Relaxation, Cardio, Muscle Recovery, Detox, Anti-Aging, and Weight Loss — each blending wavelengths at the right dose for that goal. Chromotherapy lighting adds a gentle layer: choose the color that matches how you want to feel, or let the spectrum cycle. Sessions run 30 to 40 minutes, on their own or paired with a massage or facial. One session leaves most guests feeling light, clear, and energized. The research is clearest about what happens with consistency — the benefits build with regular use, which is why many guests make the sauna a weekly practice rather than an occasional fix.
Session length 30 minutes Your session includes • A personal infrared sauna, private for your full session • Sustained heat that gently raises core body temperature • Cardiovascular benefits that mirror moderate exercise, with no joint impact • Time to cool down and rehydrate afterward Good to know • A practical complement to an active lifestyle or recovery routine • Hydrate well before and after your session • Pairs easily with massage or facial treatments in the same visit