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Signature IV

Select this 4 person sauna if you want simplicity.

With the push of a button, you’ll enjoy a deep cellular detox and support overall wellness in the sanctuary of your own personal home sauna. Surrounded in gentle far infrared heat, you’ll relax, boost your immune system, improve circulation, and naturally detoxify your body. A four-person sauna, the Signature IV sauna provides a place for one person to stretch out and relax, or up to four to enjoy some social wellness time together.

Product Specifications


Width: 206 cm

Depth: 143 cm 

Heigth: 197 cm incl. 5 cm feet

Open door depth:  71 cm


Basswood: 343 kg

Eucalyptus: 382 kg


10 FIR


Width: 190 cm

Depth: 127 cm

Heigth: 179 cm


230V - 2300W - 9.98A

3 m cable from back of panel


Width: 144 cm

Depth: 51 cm

Heigth: 50 cm



Ultra Premium Appearance
Longevity and Durability



Contemporary Aesthetic

You want effective far infrared to help you feel better, simply and affordably. Here's what you'll experience with a Signature sauna:

Inside the cabin, peace is palpable. Close the door and enjoy your own escape from the world for a while—an escape that gifts you with renewed energy and healing for your mind, body and spirit. Program the 24-hour timer to have your infrared sauna therapy experience ready whenever you’d like. Enjoy the silence, or create your ultimate relaxation playlist, or listen to the radio on your premium sound system.

Relax with the seat flat or lift up the custom-designed bench to create a reclining spot for sublime comfort. This special feature is only found in the Signature IV. The L-shaped bench makes room for a family or group sauna experience for 3 or 4 people, or remove it and stretch out on your own—it’s actually the only one large enough to fully lay down in.


The Signature IV

This model is spacious enough for the whole family (it is safe for kids), or for you to stretch out and relax with some quality alone time. Sunlighten’s SoloCarbon® heaters deliver the highest quality and quantity far infrared heat available on the market, which means you get the most effective health benefits. Our technology design mitigates EMFs to a lower level than most common household items. The air is not suffocating or harsh, it’s a gentle, comforting warmth. The Signature IV seats up to four people, the only sauna that comes with a reclining bench that can be removed to maximize room for stretching or simple yoga poses alone. Our powerful Magne-seal locking method makes assembly easy and keeps the heat in with no unsightly screws or nails. Chromotherapy lighting enhances your home sauna experience using colors from the sun’s visible light spectrum to bring balance and mental wellbeing.

Be Inspired!

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