• Cedar outdoor sauna with glass windows and door, warm lighting inside.
  • Outdoor cedar sauna with warm interior lighting and shingled roof.
  • Outdoor cedar sauna with a woman relaxing inside, showcasing its wooden design and spacious interior.
  • Cedar infrared sauna cabin with glass door and windows.
  • Cedar sauna cabin with glass windows and shingled roof, ideal for home relaxation.
  • Wooden outdoor sauna with shingled roof and attached coiled water hose.
  • Outdoor cedar sauna with warm interior lighting and shingled roof.
  • Wooden sauna with sleek design and attached black coil heater.
  • Cedar sauna cabin with warm interior lighting and glass windows.
  • Wooden outdoor sauna with glass windows and door, featuring a sleek modern design.
  • Cedar infrared sauna with glass door and window panels, featuring a shingled roof.
  • Woman relaxing in a wooden infrared sauna drinking water.
  • Outdoor infrared sauna with cedar wood panels and three windows.
  • Outdoor cedar sauna cabin with glass windows and warm interior lighting.
  • Wooden sauna back view with brown paneling and a black coil heater at the bottom right.
Up to 5% off

Enlighten Sierra 4 Person Infrared Sauna

Enlighten Sierra 4 Person Infrared Sauna

$8,895.00
$8,895.00 $9,395.00

I-16378

Low stock! Only 22 left
Location
Roof

Best Price Guaranteed

We’ll match or beat any competitor’s price.

Fast & Free Shipping

Ships in 7-15 days at no extra cost.

Authorized Enlighten Saunas Dealer

Full manufacturer warranties.

Price-drop Protection

Protected from price drops for 60 days.

Resources
Warranty
Support
Cedar outdoor sauna with glass windows and door, warm lighting inside.

Enlighten Sierra 4 Person Infrared Sauna

Tight on space but want a full sauna experience you can share? The Enlighten SIERRA - 4 Full Spectrum Infrared Sauna gives you room for four, combining 11 strategically placed carbon and full-spectrum heaters for deep, balanced warmth. Whether you go with the Indoor, Peak, or Slope model, you’ll enjoy a relaxing, low-EMF session in a roomy cedar-crafted retreat that fits beautifully into your home or patio.

About Enlighten SIERRA - 4 Full Spectrum Infrared Sauna

Need a spacious, home-friendly sauna that’s ready to support your wellness goals? The Enlighten Sierra - 4 Person Infrared Sauna gives you all the room you need to relax solo or enjoy a session with friends or family. Whether placed indoors or in a protected outdoor setting, this infrared sauna combines thoughtful craftsmanship with reliable, full-body heat therapy.

More Room for Wellness, Right at Home

This four-person sauna delivers generous space without needing a commercial-sized setup. Whether you're winding down with others or enjoying a solo session stretched out on the bench, this unit provides a relaxing environment every time. It’s the perfect size for households looking to share their wellness routine or simply enjoy more elbow room.

  • Comfortably seats up to 4 users
  • Interior bench: 65.5" x 22" for reclining or group use
  • Ideal for indoor installations or covered patios
  • Made from real Western Canadian Red Cedar for durability and warmth
  • Available with flat, peak, or slope roof designs

Even Heating With Proven Infrared Therapy

Equipped with 11 infrared heaters, including 9 carbon panels and 2 full spectrum units, the Sierra 4 offers balanced, even heat coverage. These heaters target your body gently and effectively, encouraging detoxification, easing soreness, and helping you unwind faster after each session. It’s powerful where it counts—without being overwhelming.

  • 11 heaters: 9 carbon + 2 full spectrum
  • Heating range: up to 149°F
  • Wavelengths: Near/Mid IR 0–5 microns, Far IR 6–12 microns
  • Low EMF output for peace of mind
  • Simple digital control and 60-minute timer

Designed for Everyday Use With Everyday Comfort

Comfort goes beyond the heat. Every feature is built to support your relaxation and recovery—from wider ergonomic seating to entertainment options. You’ll look forward to using your sauna, not just for the health benefits, but for the experience itself. Everything you need is built in, from soft lighting to an audio system that plays your favorite tunes.

  • Bluetooth audio system with FM/USB/AUX/MP3 input
  • Wider and deeper bench for added comfort
  • Interior lights and adjustable vent
  • Built-in backrests and cup holder
  • Double pane glass for safety and insulation

Efficient Power That Fits Modern Homes

This sauna is designed to run off a single 220/240V circuit, keeping setup simple and efficient. It uses a NEMA 6-20p plug and draws 3750 watts, giving you powerful infrared therapy without the need for complicated wiring. It’s an energy-smart way to bring spa-quality heat into your home.

  • Power: 3750W with one designated 220/240V circuit
  • 20 Amp minimum, 30 Amp recommended
  • Standard NEMA 6-20p plug
  • Total product weight: 1025 lbs
  • Ships in 7 easy-to-assemble pieces

Enlighten Sierra 4 Person Infrared Sauna Specifications

General Description

  • Seating Capacity: Up to 4 persons
  • Series: InfraNature Original Series
  • Wood Type: Real Western Canadian Red cedar wood (inside and outside)
  • Heaters: 9 Carbon Heaters and 2 Full Spectrum Heaters (11 total)
  • Heater Type: Low EMF Full Spectrum/Carbon
  • Infrared Wavelengths: Near/Mid IR: 0 to 5 microns, Far IR: 6 to 12 microns
  • EMF Level: Low EMF
  • Certification: Eco-Certified, Non-Toxic
  • Bluetooth Player: Included with speakers (supports FM/USB/AUX/MP3)
  • Other Features: Built-In Ergonomic Backrest, Wider & Deeper Bench, Digital Controller, Adjustable Vent, Ceramic Tile Floor Heater (effective & easy to clean), Cup Holder, Double Pane Tempered Glass, Inside Lights, Magazine Rack, Towel Rack
  • Assembly: Simple DIY Assembly

Dimensions and Weight

  • Interior Width: 67.5"
  • Interior Depth: 57.5"
  • Interior Height: 73"
  • Bench Size: 65.5" x 22"
  • Exterior Width: 71.5"
  • Exterior Depth: 61.5"
  • Product Weight: 1000 to 1025 lbs (varies by model)
  • Shipping Weight: 1050 to 1075 lbs (varies by model)
  • Number of Boxes: 5 to 7 (varies by model)

Roof Specifications

  • Flat Indoor Roof Model: Width: 81.5", Depth: 71.5"
  • Peak Roof Model: Width: 83.5", Depth: 73.5", Exterior Height: 96"
  • Slope Roof Model: Width: 85.5", Depth: 75.5", Exterior Height: 86"
  • Roof Type: Double Roof (Flat Roof + Outdoor Roof with Asphalt Shingles for Peak or Slope design models)

Power and Electrical

  • Voltage: 220/240 V
  • Wattage: 3750 W
  • Amperage: 20 Amp minimum, 30 Amp recommended
  • Plug Type: NEMA 6-20p
  • Power Usage: Requires 1 separate designated circuit

Temperature and Timer

  • Adjustable Temperature Range: 0-149 °F
  • Timer: 0 - 60 minutes

Additional Information

  • Product Codes and UPCs:
    • Indoor Flat Roof Model: Product code I-16378, UPC 697566076558
    • Peak Roof Model: Product code 16378, UPC 693614812635
    • Slope Roof Model: Product code 36378, UPC 693614812574
  • Included Accessories: Free Ionizer, Free Chromotherapy (promotion)

  • Enlighten Sierra - 4 Person Infrared Sauna unit
  • Interior bench (65.5" x 22")
  • Built-in backrests
  • Audio system with Bluetooth, FM, USB, AUX, and MP3 input
  • Interior lighting system
  • Adjustable vent
  • Double pane glass panels for safety and insulation
  • Power cord and plug (NEMA 6-20p, 220/240V, 3750W)
  • Assembly hardware and tools (for 7 pieces)
  • Instruction manual for setup and operation

Customer Reviews

Be the first to write a review
0%
(0)
0%
(0)
0%
(0)
0%
(0)
0%
(0)

Shipping & Delivery

View full policy

  • 1. Order Confirmation

    Right after checkout you receive an email summarizing your purchase, billing & shipping details, and order number. Keep this message handy—it’s your receipt and first reference point.

  • 2. Processing

    Our team verifies payment, allocates stock, and preps the paperwork. If anything stalls (e.g., back‑order), we’ll reach out by phone or email with options.

  • 3. Packing & Labeling

    Products are securely boxed or palletized, then matched with the best carrier: small parcels go UPS/FedEx/USPS; bulky items ride LTL freight. Lead‑time estimates live on every product page.

  • 4. Shipping & Tracking

    As soon as your label prints, you’ll get a “Shipment on the way” email with tracking and a Bill of Lading (for freight). Follow the link to watch each scan in real time.

  • 5. Delivery

    • Small packages: arrive at your door with no signature required.
    • Freight: the local terminal calls to book a curbside appointment. Be present to sign, inspect, and note any damage before the driver leaves.

  • 6. Inspection, Support & Setup

    Open every box within 2‑3 days. If parts are missing or damaged, snap photos/video and email help@myfitnessoutlet.com—we’ll fast‑track replacements. Need assembly? Confirm your service date or tackle setup yourself.

Do you offer a money‑back guarantee?

Yes. Try any product for 30 days. If it isn’t the perfect fit, return it in original condition for a full refund—no restocking fees. (Shipping fees apply only if the return isn’t due to our error or freight damage.)

Are your products covered by a warranty?

Absolutely. Every brand we carry comes with the manufacturer’s warranty—minimum 1 year, often longer on frames and motors. We’re an authorized dealer, so your warranty is 100 % valid. Need help with a claim? Our support team handles all paperwork for you.

Will you price‑match another store?

Yes. If you find an identical item in stock at a lower delivered price, send us the quote or link before you buy and we’ll match it. Our Price‑Match Guarantee protects you for 60 days after purchase as well.

Can I finance my order?

We partner with Shop Pay Installments to offer 0 % APR promos (on approved credit). Choose “Pay Monthly” at checkout to split the total into 3–24 equal payments—no hidden fees.

How long will my order take to arrive?

Processing: 1–3 business days. Transit: 3–14 business days for most U.S. addresses.
Need a precise ETA or have a deadline? Chat with us and we’ll confirm stock and carrier schedules before you buy.

Can I change or cancel my order after checkout?

Yes—if it hasn’t shipped yet. Contact us within 12 hours (small parcels) or before the Bill of Lading is generated (freight) and we’ll adjust or cancel at no cost. Once an item is in transit, standard return terms apply.

Do you provide inside delivery or assembly?

Standard freight is curbside. If you’d like room‑of‑choice delivery, white‑glove setup, or haul‑away of packaging, let us know—these services can be scheduled for an added fee at checkout or any time before the shipment reaches your local terminal.

Do you give discounts on bulk or commercial orders?

Yes. Gyms, hotels, schools, PT clinics, and corporate wellness centers qualify for volume pricing, custom quotes, and flexible NET 30 terms. Contact our commercial team at sales@myfitnessoutlet.com.

What if I don't like it?

Snap photos/video, note “DAMAGED” on the driver’s receipt, and email help@myfitnessoutlet.com within 48 hours. We’ll overnight replacement parts or send a brand‑new unit if needed—zero hassle to you.

Still have questions? Chat with us live—our experts respond in under two minutes.