Sunlighten Signature I review
By Kirill Gissa · Published · Specs checked Oct 8, 2026 · 
Scores 8.5/10, tied for 41st of the 56 infrared saunas we track. At $4,999 for one person, it is 1.9 times the category median of $2,674.50 per seat. No max temperature or heat-up time is published for it; 26 of the 56 infrared saunas state a max temperature. Returns carry a restocking fee of $499; 46 of the 56 infrared saunas charge one.
- Price
- $4,999
- Heat
- Far infrared, 8 carbon SoloCarbon heaters; recommended preheat 45–60 min
- Seats
- 1
- Max temp
- Not stated
- Warranty
- 7 years
- Returns
- 30 days
Specs and sources
Checked Oct 8, 2026 · source under each valueHeat and power
Build
Buying
Warranty, returns and shipping
Residential: 7 years cabin and heaters, 3 years controls, 1 year glass door and audio; must be purchased and activated within one year of the manufacture date.
30 days from delivery, only in the original unopened packaging; opened saunas can't be returned or exchanged. Fees may include a 3% administrative fee, storage, a $499 restocking fee and return shipping.
Free shipping to the continental US.
Warranty: Residential: 7 years cabin and heaters, 3 years controls, 1 year glass door and audio; must be purchased and activated within one year of the manufacture date. Returns: 30 days from delivery, only in the original unopened packaging; opened saunas can't be returned or exchanged. Fees may include a 3% administrative fee, storage, a $499 restocking fee and return shipping. Shipping: Free shipping to the continental US. Source: sunlighten.com, checked Oct 8, 2026.
Source: sunlighten.com, checked Oct 8, 2026.
Compared with similar infrared saunas
All 56 infrared saunas →| Model | Price | Heat | Seats | Warranty | Score | Where to buy |
|---|---|---|---|---|---|---|
| Sunlighten Signature ITHIS MODEL | $4,999 | Far infrared, 8 carbon SoloCarbon heaters; recommended preheat 45–60 min | 1 | 7 years | 8.5/10 | |
| Golden Designs Reserve Edition 1 Person Full Spectrum (GDI-8010-03) | $4,999 | Full-spectrum infrared (near and far), 5 heaters: 3 PureTech carbon panels (far IR) + 2 near-infrared elements | 1 | 5 years (limited) | 8.75/10 | See specs → |
| Sun Home Solstice 1-Person | $4,999 | Far infrared: 8 carbon heaters at 500 W each (brand: 99% emissive, 50,000-hour life); chromotherapy and Bluetooth audio included | 1 | 7 years (limited) | 8.75/10 | Check price → |
| JNH Lifestyles Tosi 2-Person Cedar | $5,199 | Full-spectrum infrared (near, mid, far), 7 carbon far- and mid-infrared heaters + 5 near-infrared emitters, 1540 W | 2 | 2 years | 9.25/10 | Check price → |
| Clearlight Premier IS-1 Far Infrared | $5,199 | Far infrared, True Wave (back, front and side walls, calves, floor); heater count not stated | 1 | Lifetime (residential) | 8.5/10 | See specs → |
