Sunlighten Signature I 1-Person FAR Infrared Sauna for Indoor Home Wellness
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What Happens After Purchase
We help make freight delivery feel simple, clear, and supported from checkout to arrival.
Order placed + specialist follow-up
Your order is placed securely online, then a sauna specialist contacts you to review details and help prepare you for delivery.
Freight carrier schedules delivery
Curbside freight delivery is scheduled directly with you, so you know when to expect your sauna.
Tracking, prep guidance + support
You’ll receive tracking and preparation guidance before arrival, with Core Human Health support available before and after delivery.
Enjoy relaxing in your new sauna
Sunlighten Signature I 1-Person FAR Infrared Sauna
A compact personal infrared sauna designed to bring the calm, restorative feel of a private wellness retreat into your everyday routine. Crafted with premium eucalyptus wood and Sunlighten’s patented SoloCarbon® far infrared technology, the Signature I creates a dedicated space to unwind, sweat, and reset at home.
A private wellness ritual in a smaller footprint.
The Signature I is a beautiful choice for anyone wanting a premium personal sauna experience without needing a large wellness room.
The core Sunlighten experience, beautifully simplified.
Core Human Health selected the Signature I because it delivers Sunlighten’s trusted far infrared technology in one of its most compact and approachable sauna designs. It brings together SoloCarbon® infrared heat, premium eucalyptus construction, low EMF design, chromotherapy lighting, and built-in sound in a clean one-person footprint.
SoloCarbon® Infrared
Patented far infrared heater technology designed for a calming, high-quality infrared sauna experience.
Low EMF Design
A thoughtful feature for those comparing infrared sauna quality, comfort, and overall wellness environment.
Compact Footprint
A premium sauna experience designed to fit beautifully into smaller indoor wellness spaces.
Premium Eucalyptus
Durable, fragrance-free wood with a clean, elevated look and natural grain variation.
Sound + Atmosphere
Bluetooth sound, built-in speakers, and chromotherapy lighting help each session feel more personal.
Made for Routine
Simple controls and a personal cabin design make regular heat therapy feel easy and inviting.
Simple, calming, and built for everyday restoration.
Step inside, choose your preferred session settings, turn on your music or chromotherapy lighting, and settle into a quiet warming ritual. The Signature I is designed for intentional routines, personal reset time, and consistent home wellness.
Dimensions
| Exterior | 37.8" W × 39.8" D × 77.7" H, including 2" base feet |
| Interior | 32.2" W × 33.6" D × 70.3" H |
| Bench | 32.1" W × 20.2" D × 19.5" H |
| Door Opening | 28" |
| Weight | 428 lbs. |
Heating Technology
| Heat Type | Far infrared |
| Technology | Sunlighten patented SoloCarbon® far infrared heaters |
| Heaters | 8 far infrared heaters, including floor heaters |
| Heat Style | Far infrared only |
Electrical
| Voltage | 120V |
| Power | 1350W |
| Circuit | 20A dedicated circuit |
| Outlet | NEMA 5-20R / 5-20P |
Materials + Features
| Wood | Premium eucalyptus |
| Lighting | Built-in chromotherapy lighting |
| Audio | Premium Bluetooth sound system with built-in speakers |
| Controls | Digital control panel |
| Additional Details | Low EMF design, magnetic locking system, floor heaters, premium cabin construction |
Natural color, tone, and grain variation are part of the beauty of eucalyptus wood and give each sauna its own individual character.
Delivery + Support
The Sunlighten Signature I ships by freight with free curbside delivery. After checkout, a Core Human Health specialist will personally reach out to help coordinate delivery communication and answer questions.
This sauna typically ships in 1–3 business days. Once in transit, the freight carrier coordinates final delivery scheduling directly.
Warranty
| Residential | 7 years on cabinetry and heaters, 3 years on controls, 1 year on glass doors and audio components |
| Commercial | 5 years on cabinetry and heaters, 1 year on controls, 1 year on glass doors and audio components |
Helpful answers at a glance.
Is the Signature I an indoor sauna?
How many people fit in the Signature I?
What type of heat does it use?
Is this a hybrid sauna?
Does it include chromotherapy and sound?
What electrical setup does it use?
How is it delivered?
Why choose the Signature I?
A more guided way to choose your sauna.
Core Human Health curates premium wellness equipment based on quality, materials, technology, function, and long-term value. We help simplify the experience with product education, delivery coordination, and personal support along the way.
Create your personal wellness ritual.
Whether you are creating a quiet recovery space, upgrading your home gym, or building a more intentional wellness routine, the Sunlighten Signature I offers a refined way to bring daily heat therapy into your home.
Sunlighten Saunas Signature I - FAR Infrared Sauna 1-Person Indoor Sauna
Resources
Signature I Manual
Signature I Spec Sheet
Signature I Technical Specifications
Sunlighten Signature Series
Signature Far Infrared Saunas
Sunlighten’s most streamlined far infrared sauna collection — designed for deep relaxation, daily wellness, and the trusted performance of patented SoloCarbon® heater technology.
The Signature Series is ideal for buyers who want the core Sunlighten experience: premium eucalyptus craftsmanship, gentle far infrared warmth, built-in chromotherapy, low EMF design, and simple push-button wellness at home.
![](https://cdn.shopify.com/s/files/1/0806/6367/5116/files/Signature2_Eucalyptus_Qtr_L.png?v=1777162670="width:100%;display:block;border-radius:22px;")
Best For
Relaxation & Overall Wellness
A simple, effective far infrared experience for consistent home use.
Technology
Patented SoloCarbon®
Sunlighten’s signature far infrared heater technology, designed for high-quality infrared delivery.
Design
Premium Eucalyptus
Durable, sustainable, fragrance-free wood with a clean, natural look.
The Experience
Simple, calming, and built for everyday use
The Signature Series is designed for buyers who want a peaceful home sauna experience without unnecessary complexity. Gentle far infrared heat, built-in chromotherapy, premium sound, and easy controls create a calming space to unwind, sweat, and support a consistent wellness routine.
Why Signature Stands Out
The essentials of Sunlighten, beautifully simplified
Signature is Sunlighten’s far infrared collection for buyers who value simplicity, quality, and proven infrared technology. It delivers the core Sunlighten experience in a refined cabin that feels easy to use and easy to love.
With SoloCarbon® heaters, low EMF design, chromotherapy lighting, premium sound, and eucalyptus construction, Signature is a strong fit for anyone creating a clean, restorative wellness space at home.
Key Features
Everything you need for a premium far infrared ritual
SoloCarbon® Far Infrared
Designed to deliver the high-quality far infrared heat Sunlighten is known for.
Low EMF Design
Engineered for a safer, cleaner sauna environment with third-party verified standards.
Chromotherapy Lighting
Built-in color therapy helps create a more calming, mood-supportive atmosphere.
Premium Sound System
Bluetooth sound with built-in speakers lets each session feel more personal and restorative.
Signature Models
Choose the right size for your space
Signature is available in one- and two-person models, both designed around simple far infrared therapy, premium eucalyptus construction, and everyday ease of use.
Signature I
A refined one-person far infrared sauna for compact wellness spaces and quiet solo recovery.
Capacity: 1 person
Exterior: 37.8" W x 39.8" D x 77.7" H
Electrical: 120V, 1350W, 20A dedicated circuit
Heaters: 8 FIR including floor heaters
Weight: 428 lbs
Signature II
A comfortable two-person far infrared sauna with more room for shared use or a more spacious solo session.
Capacity: 2 person
Exterior: 50.9" W x 45.9" D x 77.7" H
Electrical: 120V, 2006W, 20A dedicated circuit
Heaters: 9 FIR including floor heaters
Weight: 522 lbs
Why Buy From Core Human Health
A better way to choose your sauna
Core Human Health helps you choose the right sauna for your space, goals, and daily routine. We look beyond the product listing and help you think through fit, capacity, electrical needs, delivery expectations, and how the sauna will support your larger wellness lifestyle.
For buyers who want the trusted Sunlighten far infrared experience in a simple, elegant format, the Signature Series is a highly approachable place to begin.
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“Invest in a recovery ritual you’ll return to.”
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