Wellness & Recovery
Infrared Sauna
Sunlighten full-spectrum infrared sauna with 7 wellness programs
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Full-Spectrum Heat for Deep Recovery
Royal Thai Spa features the Sunlighten Signature III — a clinically-backed full-spectrum infrared sauna that heats your body directly rather than the air around you. The result is a deeper sweat at a lower, more comfortable temperature than a traditional sauna.
Choose from seven preset wellness programs designed for specific goals: Detoxification, Relaxation, Anti-Aging, Cardiovascular, Weight Loss, Pain Relief, and Recovery. Each program adjusts the balance of near, mid, and far infrared wavelengths to target the right outcome.
Infrared sauna pairs beautifully with cold plunge for contrast therapy. The deep heat opens vessels and prepares the body, then the cold plunge amplifies the effects — reducing inflammation, accelerating recovery, and supporting the immune system.

Full-Spectrum Heat
Near, mid, and far infrared wavelengths
Detoxification
Deep sweat releases toxins from the body
Cardiovascular Boost
Raises heart rate like moderate exercise
Pain Relief
Soothes sore muscles and joint stiffness
Anti-Aging Skin
Promotes collagen and skin renewal
7 Programs
Preset modes for specific wellness goals
Wellness Programs
Seven Preset Programs
The Sunlighten Signature III lets you choose a clinically-designed program for the specific outcome you want. Each preset adjusts the balance of near, mid, and far infrared wavelengths.
Detoxification
40 minDeep, full-spectrum sweat helps the body expel toxins through the skin.
Anti-Aging
30 minNear-infrared light stimulates collagen and improves skin tone and elasticity.
Cardiovascular
40 minHeat-induced cardiovascular stress mimics moderate exercise to support heart health.
Weight Loss
40 minA single session can burn 200–600 calories. Best paired with regular use.
Pain Relief
30 minMid-infrared penetrates muscle and joint tissue to ease chronic and acute pain.
Recovery
40 minFar-infrared boosts circulation and accelerates recovery after exercise.
Relaxation
30 minA gentle, restorative program designed for stress reduction and deep calm.
Select your program from the in-sauna touchscreen at the start of your session.
Pricing
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For weekday visits, please schedule your appointment online. Walk-ins welcome based on availability.
Or text us at (415) 894-2299



