The Signature® Series

Signature Renew BathroomSun­lighten™ Sig­na­ture® Infrared saunas are an effec­tive tool for nat­ural heal­ing and pre­ven­tion. Infrared light has the abil­ity to pen­e­trate human tis­sue which in turn pro­duces a host of anti-aging health ben­e­fits mak­ing infrared saunas one of the “hottest” home ther­a­pies for over­all health­ier liv­ing. If you want to get your­self back into bal­ance, an infrared sauna may be the ticket to achiev­ing your well­ness goals.


Signature® I

Turn any room into a per­sonal oasis with the newest Sig­na­ture sauna. This slim design is lux­u­ri­ous, extremely func­tional and the most effec­tive on the market. 

Start enjoy­ing the ben­e­fits of infrared ther­apy with this space! Our most eco­nom­i­cal model will trans­form any room into a spa retreat. Relax and immerse your­self in sooth­ing Solo­car­bon® heat. Let the cares of the day drift away as you bask under soft inte­rior light­ing, warmed by 6 infrared sauna heaters and a pre­mium Blaupunkt sound sys­tem. Start enjoy­ing the health ben­e­fits of a best-in-class Sig­na­ture® 1 infrared home sauna today.

The Signature® 1 offers com­fort­able room inside, whilst con­ve­niently tak­ing very lit­tle exter­nal area.

This sauna is the per­fect addi­tion to a room or space of any size. The chic design of this home infrared sauna will add an ele­ment of con­tem­po­rary sophis­ti­ca­tion to any room of your home.


Exte­rior Dimensions101.6cm W x 106.4cm D x 196.9cm H / 71.1cm door width
Inte­rior Dimensions81.5cm W x 85.4cm D x 178.1cm H / 50.8cm bench depth
Sauna Wood OptionsEco-certified Bass­wood
Eco-certified Cedarwood
Tech­ni­cal6 Heaters
Elec­tri­cal120V 1350W 15A (NEMA 5-15R, 5-15P, ded­i­cated 120V 15A cir­cuit and out­let required).
Weightup to 448 lbs

Signature® II

Restore your healthy vital­ity with this slim and sleek Sig­na­ture® sauna. Ele­gant details of crown mold­ing and exte­rior light­ing make this far infrared sauna a beau­ti­ful addi­tion to any room. The Sig­na­ture® II is an attrac­tive space-saver for one or two persons.

Relax and immerse your­self in sooth­ing Solo­car­bon® heat. Let the cares of the day drift away as you bask under soft inte­rior light­ing, warmed by 9 infrared sauna heaters and a pre­mium Blaupunkt sound sys­tem. Start enjoy­ing the health ben­e­fits of a best-in-class Sig­na­ture® 2 infrared home sauna today.



Exte­rior Dimensions134.9cm W x 122.2cm D x 196.9cm H / 71.1cm door width
Inte­rior Dimensions116.6cm W x 101.6cm D x 178.1cm H / 50.1cm bench depth
Sauna Wood OptionsEco-certified Bass­wood
Eco-certified Cedarwood
Tech­ni­cal9 Heaters
Elec­tri­cal120V 1760W 15A (NEMA 5-15R, 5-15P, ded­i­cated 120V 15A cir­cuit and out­let required).
WeightUp to 492 lbs
Sig­na­ture® III

Turn any room in your home a per­sonal sanc­tu­ary. Renew your body and spirit in this spa­cious Sig­na­ture® sauna. Share a ther­a­peu­tic expe­ri­ence with oth­ers or lie down and stretch out with extra inte­rior space.

For those who wish to share this pre­mium home sauna expe­ri­ence with friends or fam­ily, the Sig­na­ture® III from Sun­lighten is a 3-person sauna large enough to share with oth­ers and mod­est enough to fit into any room. For the home spa enthu­si­ast, the Sig­na­ture® III infrared sauna is built with qual­ity and com­fort that addresses whole-body relax­ation needs. Turn any room into a per­sonal spa sanc­tu­ary with 10 heaters, deep-penetrating infrared heat, tall benches, and space enough to stretch out and enjoy the home sauna expe­ri­ence at its best.
The Sig­na­ture® III sauna is a must-have for shar­ing the relax­ing home sauna expe­ri­ence with others.

Want to really feel the music? With the SO Sound Vibra­tional Ther­apy add-on, the vibra­tions of your favorite music res­onate through­out your sauna ses­sion, allow­ing you to feel a full-body musi­cal mas­sage. Ask about the SO Sound Vibra­tional Ther­apy add-on as part of our Sig­na­ture® Revive solo­car­bon infrared saunas today.

Exte­rior Dimensions164.1cm W x 122.2cm D x 196.9cm H / 71.1cm door width
Inte­rior Dimensions145.6cm W x 101.6cm D x 178.1cm H / 50.1cm bench depth
Sauna Wood OptionsEco-certified Bass­wood
Eco-certified Cedarwood
Tech­ni­cal10 Heaters
Elec­tri­cal120V 2035W 20A (NEMA 5-20R, 5-20P, ded­i­cated 120V 20A cir­cuit and out­let required).
Weightup to 598 lbs
 Sun­lighten™ Sig­na­ture® Col­lec­tion Com­par­i­son Chart
Sig­na­ture® ISig­na­ture® IISig­na­ture® III
# of People11 - 22 - 3
Exte­rior Dimensions40.0″ W
41.9″ D
77.5″ H
53.1″ W
48.1″ D
77.5″ H
64.6″ W
48.1″ D
77.5″ H
Inte­rior Dimensions32.1″ W
33.6″ D
70.1″ H
45.9″ W
40.0″ D
70.1″ H
57.3″ W
40.0″ D
70.1″ H
Wood OptionsEco-certified Bass­wood
Eco-certified Cedar
Eco-certified Bass­wood
Eco-certified Cedar
Eco-certified Bass­wood
Eco-certified Cedar
Elec­tri­cal120V 1350W 15A120V 1760W 15A120V 2035W 20A
Heaters6 Heaters9 Heaters10 Heaters
WeightUp to 448 lbsUp to 492Up to 598 lbs

Sig­na­ture® Features

Solo­car­bon® Far Infrared Tech­nol­ogy - Most Effec­tive Far Infrared Heat Available

If you are pur­chas­ing a sauna for health ben­e­fits, the sin­gle most impor­tant ele­ment to con­sider is heater emis­siv­ity which deter­mines how effi­cient infrared heat is con­ducted and emit­ted. If a sauna is not effi­cient at emit­ting infrared, you are not receiv­ing the ben­e­fits of infrared! Generic car­bon blend heaters are less than 85% effec­tive. Solo­car­bon® far infrared heaters are 95% effi­cient at emit­ting infrared. When research­ing infrared saunas, always ask for emis­siv­ity data. This deter­mines the qual­ity of infrared heat.

Clinically-tested to lower blood pres­sure, increase core tem­per­a­ture and aid in weight loss

Solo­car­bon® heat­ing tech­nol­ogy is the foun­da­tion for all of our sauna prod­ucts. It is the only heater on the mar­ket clin­i­cally shown to raise core tem­per­a­ture, lower blood pres­sure and aid in weight loss. This is one of the rea­sons more doc­tors rec­om­mend Sun­lighten over any other sauna brand. Click here for reviews from well­ness experts.

Ultra low EMF technology

Envi­ron­men­tally approved for safety with safe, ultra low EMF tech­nol­ogy.
When pur­chas­ing a sauna, your top two pri­or­i­ties should be safety and effec­tive­ness. All Sun­lighten saunas are com­pletely safe and always have been. Our pro­pri­etary heater design vir­tu­ally elim­i­nates all EMF and steel con­duit elec­tri­cal shield­ing makes Solo­car­bon® heaters as safe as pos­si­ble. Solo­car­bon® pan­els con­tain a unique pro­pri­etary blend of mate­ri­als that are 100% qual­ity con­trolled by Sun­lighten™. This means - unlike other saunas on the mar­ket - we can ensure the safety & effec­tive­ness of each indi­vid­ual heater. Solo­car­bon® pan­els are heat-sealed, mean­ing no wires or glues are used, so there is no release of unhealthy gases dur­ing heat­ing. With the safest, clinically-tested tech­nol­ogy avail­able, it is no won­der our infrared saunas are the most trusted on the planet.

Patented Magne-Seal™ Assembly

Only Sun­lighten offers a patented mag­netic lock­ing sys­tem, elim­i­nat­ing the need for unsightly clips to hold the sauna together. Ben­e­fits include:

  • Easy Assem­bly - walls eas­ily snap together, mak­ing it a cinch to set up and take down
  • Pro­longed Cab­i­netry - adapts as wood expands & con­tracts with heat to pre­vent cracks or warping
  • Heat Pro­tec­tion - bet­ter seals between the walls of your sauna mean heat stays in and cold air stays out
  • Dura­bil­ity - as strong and durable as clips, buck­les or screws, but invis­i­ble to the eye so there’s noth­ing unsightly about your sauna
  • Dou­ble Rein­force­ment - com­bined with the hid­den U-shaped clip and inter­lock­ing halo roof, the con­struc­tion of your sauna could not be more secure.
Beau­ti­ful crafts­man­ship with solid wood construction

With 100% quality-controlled man­u­fac­tur­ing, you will not find another far infrared sauna as beau­ti­ful. Sig­na­ture saunas have solid tongue and grove con­struc­tion, 33% thicker wood than the indus­try stan­dard and are com­mer­cial grade for extra dura­bil­ity.
Eco-friendly Wood Options
Sig­na­ture saunas are made from PEFC-Certified wood that is sus­tain­able, adapt­able to high tem­per­a­tures and extremely durable mak­ing it ideal for high traf­fic use. The cot­ton­wood exte­rior has a light cherry fin­ish and is sourced in the United States.

Deluxe Bench for Com­fort & Multi-Function

The Sig­na­ture bench is made of solid wood, 19″ high and 20″ deep (10% deeper than indus­try stan­dard) for ulti­mate com­fort. Benches are also remov­able to allow for full use of floor space for stretch­ing or yoga poses.

Pro­gram­ma­ble timer & con­tin­u­ous use options for convenience

36 Hour Pro­gram­ma­ble Timer
Pre­set your Sig­na­ture infrared sauna with our industry-leading 36 hour pro­gram­ma­ble timer or leave on for con­tin­u­ous use. Your Sun­lighten sauna will be heated & ready to go pre­cisely when you want it! Your Sig­na­ture sauna also fea­tures a exte­rior power but­ton so you can eas­ily turn on your sauna with­out step­ping inside.

Supe­rior Blaupunkt Sound System

Bask in the supe­rior sound from our Blaupunkt AM/FM CD player with MP3 input. Choose your favorite tunes, close your eyes, and be taken away by the crys­tal clear music from this upgraded sound system.

Energy-Efficient LED Lighting

Energy-efficient LED lights out­line the exte­rior of the Sig­na­ture® Series from the halo roof, high­light­ing its beau­ti­ful craftsmanship.

Soft Inte­rior Lights

Soft inte­rior lights add an inti­mate ambi­ence and come Chromotherapy-ready for those choos­ing this option.

Retractable Air Vent

The retractable air vent keeps fresh air cir­cu­lat­ing through­out the cabin, and can be eas­ily closed for those want­ing to opti­mize the heat from our infrared heaters.

Online well­ness com­mu­nity and biofeed­back tools track progress over time

Biofeed­back acces­sories take sauna ther­apy to the next level. Track your heart rate and calo­ries burned dur­ing sauna ses­sions & wire­lessly send data to your per­sonal well­ness web­site - - to mon­i­tor progress over time. This dynamic web­site is designed to help Sun­lighten cus­tomers achieve their well­ness goals with daily guidance.

  • Track sauna ses­sions and other car­dio­vas­cu­lar activity
  • Con­nect with other Sun­lighten cus­tomers with sim­i­lar goals
  • Fol­low fit­ness plans with easy how-to-videos
  • Plan meals and get nutri­tional recipes
  • Get free advice from our well­ness coaches 24/7

Have peace of mind with a 5-year war­ranty on wood, con­trols and heaters.

  • 5-Year War­ranty on Wood and Electronics
  • 1-Year War­ranty on Stereo

Sig­na­ture® Options

SO Sound Vibra­tional Therapy

SO Sound™ acoustic res­o­nance ther­apy is our most pop­u­lar sauna enhance­ment! When installed under the bench, the SO Sound sys­tem com­bines the heal­ing effects of sound and vibra­tion to bal­ance the brain­waves bring­ing the body to a deeper state of relax­ation. Add another layer of expe­ri­ence to your Sun­lighten Sauna! Feel a full body musi­cal mas­sage as the vibra­tions of your favorite music res­onate through­out your sauna.

Seam­less Chro­mother­apy

Enjoy the heal­ing ben­e­fits of color and light ther­apy to help your body re-establish its nat­ural bal­ance. Comes with an easy-to-use remote con­trol, and can be added to any of our wooden sauna models.

Wood options

Eco-certified Cot­ton­wood

Custom-Fit Water­proof Cover

Designed specif­i­cally for out­door use, our cus­tom water­proof cov­ers not only pro­tect your sauna from the ele­ments, but also keep your war­ranty intact.