Sunlighten Signature 4 Person Far Infrared Sauna – Northern Saunas

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Sunlighten Signature 4 Person Far Infrared Sauna


FOR EXCLUSIVE PRICING CALL OR TEXT US AT 1-844-240-9233. Experience the largest Signature® home sauna – the Signature IV! This model is spacious enough for the whole family or you to...

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Vendor: Sunlighten


Experience the largest Signature® home sauna – the Signature IV! This model is spacious enough for the whole family or you to stretch out and relax with some quality alone time. 

Features :

  • Solocarbon® heaters deliver the highest concentration of far infrared heat available, proven 99% effective
  • Ultra low EMF technology ensures ultimate safety
  • Patented Magne-Seal™ assembly process for easy set up
  • Programmable timer & continuous use options for convenience
  • Available in basswood, cedar.

    Interior Dimensions: 

    • Width: 74.4"
    • Depth: 49.9″
    • Height: 70.1″
    • Bench 74.4” x 20″ x 19″


    Exterior Dimensions:

    • Width : 80.9"
    • Depth: 56.1″
    • Height: 77.5″
    • Door Width: 28”

    Sauna Weight:

    • Basswood – 711 lbs
    • Cedar – 711 lbs


    Sauna Panels :

    For seamless craftsmanship, each wall of the Signature consists of one large wooden panel:

    • Roof & Floor Panels : 64.5” x 48.1” x 3” thick (see diagram)
    • Back & Front Panels : 57.4” x 71” x 3” thick (see diagram)
    • Side Panels : 44.6” x 71” x 2.6” thick

    Fitting into your space: Because of the large panel size, it is important to ensure there is enough space through the doors and pathways to the sauna’s location in your home. Standard doors in the US are 30” to 36” wide, and 6’ to 8’ tall. Please measure any doorway or hallway needed prior to purchase.

    Heaters :

    • Heaters: 10 Far Infrared Heaters
    • Floor heater


    Electrical : 

    • 240V 2750W 20A
    • 2750 watts 
    • NEMA 6-20R, 6-20P
    • 9’ cord exits from back left of the base   

    *FOR COMMERCIAL FACILITY: If only 208v is available, a Buck-Boost transformer must be installed to provide the correct electrical specifications for the unit to operate.


      Add-Ons To Your Sunlighten Sweating Experience :


      Multi-Use Backrest 

      Stand up to get the most comfort out of your sauna sessions. 22″ height x 18″ width x 6″ depth
      • Lean against the wall with more comfort, with improved fit for mPulse and Signature
      • Lay on top to provide a slight incline
      • Place under knees for lower back support

      Acoustic Resonance Therapy (ART) 

      All Sunlighten Sauna® models can add Acoustic Resonance Therapy (ART). ART 

      SO Sound® combines the healing effects of sound and vibration to harmonize all systems of the body bringing you to a deeper state of relaxation. Attached at specific locations in the sauna, the SO Sound® system uses an amplified audio signal to resonate sound waves to the surface of the sauna.

      Listening to soothing music and feeling it resonate throughout the body stimulates the bodys natural relaxation response. It feels like light touch massage during your sauna session.SO Sound® can be easily installed into any wooden Sunlighten sauna 

      A.R.T. Benefits:

      • Balancing heart rate, blood pressure and increasing circulation
      • Energizing and uplifting one’s mood and emotional well being
      • Enhanced creativity, communication and problem solving capabilities
      • Significant stress reduction, including relief from symptoms of many chronic conditions

      What research suggests SO Sound delivers health benefits : 

      Want to learn more about what Dr. Oz was talking about? The nitty gritty of the science behind all of this? There is significant research demonstrating the benefits of music, sound therapy and vibrational therapy. For additional information, view the following studies:

      Sauna Cover 

      No room indoors? We’ve got you covered. Sunlighten water-resistant canvas sauna covers are custom-made and perfect for the great outdoors. They keep your sauna protected year round AND your warranty intact for outdoor use.

      *Our sauna covers are made to order. Please allow 3 weeks for delivery.

      Bench Cushion 

      Add an extra layer of comfort to your sauna session 
      Our bench cushions are custom-made for Sunlighten sauna benches to create the most comfortable sauna experience. Keep your cushion clean with the optional Bamboo Carbon fitted cover.

      Chromotherapy Mood Lighting 

      Enjoy the healing benefits of light and color with Chromotherapy in your Sunlighten™ sauna.

      Chromotherapy is the science of using colors to adjust body vibrations to frequencies that result in health and harmony. Each color possesses frequencies of a specific vibration, and each vibration is related to different physical symptoms. Chromotherapy works on various energy points to help balance your body via the full spectrum of visible light, each color of which addresses a distinct need.


      LT01: 70% wool, 15% polyester, 10% polyamide, 5% acrylic 900 Grms/mt

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