Patented SoloCarbon® Heaters
Highest quality and quantity of far infrared output available. Industry-leading 99% emissivity rate.
Private Session · Full Spectrum Infrared · Chromotherapy
Most people think a sauna is just a hot box. What's happening inside your cells during a Sunlighten session is something else entirely — and most people have no idea what they've been missing.

Not all infrared saunas are the same. The Sunlighten Signature 3 is a different category — patented SoloCarbon® technology, independently tested, built from hypoallergenic Canadian basswood. The same technology trusted by 200+ medical and wellness professionals worldwide.
Highest quality and quantity of far infrared output available. Industry-leading 99% emissivity rate.
Hypoallergenic, no resins or tannins, doesn't off-gas at heat. Safe for the most sensitive clients.
Independently tested — near-zero EMF output, well below the already-low industry standard.
Full LED panel built in. Choose your color every session based on your goal.
Built-in audio. Towel service, spring water, and a chilled peppermint cloth waiting post-session.
A traditional steam sauna heats the air to 180–200°F. Infrared is light, not hot air — it passes through the skin entirely and generates heat from inside your tissue. The Sunlighten Signature 3 operates between 120–150°F while producing a deeper, more sustained sweat response that starts inside your cells.
Your own private sauna room — no shared benches, no waiting.
Pick your chromotherapy color from the built-in LED panel.
Warm, deep, cellular sweat at a comfortable 120–150°F.
Spring water, towel service, and a chilled peppermint-infused cloth on exit.
Signature 3 delivers all three infrared wavelengths — each with its own therapeutic role.
The workhorse. Penetrates 2–3 inches deep into soft tissue. Drives cardiovascular, detox, pain relief, and cortisol-reduction benefits.
Penetrates into joints and soft tissue. Supports circulation, pain relief in joint-dense areas, and mobility.
Transforms at the skin's surface — stimulates fibroblast cells to produce collagen and elastin.
The full picture — including the ones most sauna pages skip entirely. You deserve to know what's actually happening.
Faster recovery, reduced DOMS, preserved muscle mass, better sleep the night after training.
Elevated cortisol, compressed posture, poor sleep, afternoon brain fog — infrared addresses all of it.
Serotonin elevation, cortisol reduction, parasympathetic reset, and deep-sleep trigger — all in 30 minutes.
Collagen production, elastin support, pore clearing, improved tone.
Heavy metals, BPA, mold toxins, pesticides — if you live in the modern world, this is for you.
Heat shock proteins, mitochondrial biogenesis, cardiovascular adaptation, HRV improvement.
25+ years of light science innovation. 50 owned and pending patents. Endorsed by Dr. Mark Hyman.
No resins, no tannins, no off-gassing at heat. The safest sauna wood for sensitive clients.
Independently third-party tested. Emits well below the already-low industry standard.
Research protocols that documented the strongest results used 3 to 4 sessions per week. Even 2 sessions per week produces meaningful results. The landmark longevity study found 4–7 sessions per week produced the greatest long-term cardiovascular protection.
Infrared uses light waves to heat your body directly from within. Traditional saunas run at 180–200°F to force sweat through hot air. Infrared runs at 120–150°F and produces a deeper, more cellular sweat that starts inside your tissue.
A 3-person infrared sauna constructed from hypoallergenic Canadian basswood with patented SoloCarbon® heating panels. Delivers the highest quality far infrared output, near-zero EMF, and 7-color chromotherapy.
For specific toxins, yes — heavy metals, BPA, pesticides, and mold mycotoxins. Infrared-induced sweat has been documented to excrete these at concentrations matching or exceeding urinary elimination.
Yes — with research behind all three. Heat exposure elevates serotonin and triggers endorphin release. A single session can improve depressive symptoms for up to 6 weeks. Cortisol drops. HRV improves.
Strongly supported. A 20-year Finnish cohort study found sauna use 4–7 times per week linked to 63% lower risk of sudden cardiac death. Single sessions have reduced blood pressure comparably to moderate exercise.
Basswood is naturally hypoallergenic — no resins, no tannins, no off-gassing at heat. The safest option for sensitive clients.
For maximum benefit, 3–4 sessions per week. Even 2 sessions per week produces meaningful results.
117 Washington Ave Suite 21, North Haven, CT 06473.
Sunlighten Signature 3 infrared sauna at Muscle Therapy Wellness Lounge — private room, near-zero EMF, minutes from New Haven, Hamden, and Wallingford.
North Haven · New Haven · Hamden · Wallingford · Cheshire · Branford · East Haven · Meriden
30–45 minutes in the Sunlighten Signature 3 does things to your body that no supplement, no cold plunge, and no workout can replicate.
Services are focused on wellness, recovery, and muscular relief. We do not diagnose or treat medical conditions.