Sunlighten Solo Review: A Lie-Down Portable Sauna
Sunlighten Solo review: a fold-away infrared dome and heated pad you lie inside. Owners like the position but report long preheats and heaters that weaken over the years.
The Sunlighten Solo is the best-built indoor portable sauna, a lie-down infrared dome with a 7-year heater warranty, but owners report 30–45 minute preheats and a 150°F maximum that's gentler than any cabin.
- Best for
- Infrared you can lie down in, then fold away
- Skip it if
- You want true sauna temperatures. A cabin or a hot-air pod gets far hotter.
- Price
- About $2,100–$3,000
Sunlighten Solo System specs
| Type | Far infrared, 9 heaters in dome and pad |
|---|---|
| Capacity | 1 person (lie-down) |
| Max temperature | 150°F |
| Power | 120V standard outlet |
| Warranty | 7 years heaters, 3 years controllers, 1 year fabric and foam |
| Price | About $2,100–$3,000 (checked October 2026) |
| Size | Dome 69″ × 28″ × 18″ (46 lb), folds for storage |
What we like
- Lie down instead of sitting upright
- Heaters above and below you, on a standard 120V outlet
- 7-year heater warranty, long for a portable
- Folds away for apartments and shared rooms
What we don't
- Owners report 30–45 minutes to warm up fully
- Far infrared only, with a 150°F maximum
- Expensive for a portable
The Sunlighten Solo is a portable far-infrared sauna you lie inside: a heated pad underneath and an infrared dome over your body, with your head outside. It plugs into a standard 120V outlet and folds into a closet. As of October 2026, it’s our pick for the best indoor portable sauna, mainly because its build and 7-year heater warranty are far ahead of fabric tents. A several-year owner’s report sets realistic expectations about heat.
Is the Sunlighten Solo worth it?
The Sunlighten Solo is worth it if you want infrared therapy in a small home and prefer lying down to sitting upright. It’s not worth it if you want sauna-level heat or a quick session. Owners report long preheats and a gentler experience than a cabin.
Great for
- Apartments and shared homes with no room for a cabin
- People with back or joint issues who’d rather lie down
- Buyers who want a portable from an established brand with a long heater warranty
Skip it if
- You want true sauna temperatures. A wood-fired tent gets far hotter outdoors.
- You’re on a tight budget. A sauna blanket costs a fraction of the price.
Heat and performance
The Sunlighten Solo has nine far-infrared heaters, five in the dome and four in the pad, with two dome heating zones and a 150°F maximum. The dome sits close to your body, which owners like: one prefers dome designs because “the heaters are closer to the body than they are in cabin models”.
The limitation is warm-up. A Solo owner of several years says they usually ran it 30–45 minutes before getting in, and felt the heaters became less effective over time. Another owner wanted more intensity. Sunlighten recommends 30–40 minute sessions, starting at about 15 minutes on low.
Size, power and installation
The Sunlighten Solo dome measures 69″ L × 28″ W × 18″ H and weighs 46 lb. The SoloPad is 74″ × 23.6″ × 4″ and weighs 13 lb. It plugs into a standard household outlet, with no wiring needed.
Setup takes minutes, but placement matters. The pad has heaters in its base, so Sunlighten says it shouldn’t sit directly on the floor. Use a Solo Mat, Solo Rise, massage table, yoga mat or bed. Both pieces fold for storage.
Build quality and durability
The Sunlighten Solo is substantially built for a portable, with rigid zoned heaters rather than a fabric bag. Size can be an issue: Reviewers note it may not suit all body types. The long-term owner’s report of heaters losing effectiveness over the years is worth weighing against the 7-year heater warranty.
Features and extras
- Chromotherapy with a 16-colour remote
- Two heating zones in the dome
- Accessories: Solo Mat, Solo Rise, pillow and cushions
- Third-party tested emissivity, according to Sunlighten
What owners say
- Position: owners like lying down with heat above and below.
- Heat-up: “it always took a long time to heat up”, 30–45 minutes, according to a multi-year owner.
- Ageing: the same owner felt the heaters became less effective over time.
- Intensity: another owner “was not impressed with the heater strength” and wanted more heat.
- Brand service: Sunlighten’s service record is mixed overall. See our Sunlighten Amplify II review for details.
Warranty and customer service
The Sunlighten Solo carries 7 years on heaters, 3 years on the Solo and SoloPad controllers, and 1 year on heater fabric and memory foam (residential use). That’s unusually long for a portable. Sunlighten holds 4.6/5 on Trustpilot from about 4,080 reviews, alongside recurring complaints about slow repairs.
Price and total cost
| Cost | Typical amount |
|---|---|
| Solo System (dome + pad) | About $2,100–$3,000 |
| Solo Mat or Rise (recommended) | Optional |
| Typical total | $2,100–$3,300 |
The Solo draws about 1.3kW, so a session costs roughly 20–30¢.
Sunlighten Solo vs a sauna blanket
A sauna blanket like the HigherDOSE costs about $600–$700, stores flat and also lets you lie down. The Solo is more rigid and has zoned heaters, a dome that doesn’t press on your body, and a much longer warranty. If budget matters most, start with a blanket. If you want the most substantial lie-down option, choose the Solo. See our HigherDOSE blanket review.
Final verdict
The Sunlighten Solo is the most substantial portable infrared sauna for small homes, with a comfortable lie-down design and an excellent heater warranty. Go in expecting gentle heat and a long preheat, not a cabin experience, and it’s a solid option where nothing bigger fits.
How we rated the Sunlighten Solo System
Our rating is based on verified specifications and owner reports, not hands-on testing. How we research and score.
| Heat and performance | 3.2 | |
|---|---|---|
| Build quality and owner-reported reliability | 4.0 | |
| Ease of setup and installation | 4.6 | |
| Warranty and customer service | 3.5 | |
| Value for money | 3.6 | |
| Overall | 3.8 |
Featured in: Best portable saunas · Best infrared saunas
Sunlighten Solo System FAQ
How hot does the Sunlighten Solo get?
The Sunlighten Solo reaches up to 150°F. Because the dome sits close to your body, it feels intense at lower air temperatures, but owners report a 30–45 minute preheat to feel the full effect.
Do you lie down in the Sunlighten Solo?
Yes. You lie on a heated SoloPad under an infrared dome, with your head outside. The pad must sit on a raised surface such as a Solo Mat, massage table, yoga mat or bed, not directly on the floor.
How much does the Sunlighten Solo cost?
As of October 2026, Sunlighten lists the Solo System Chromo at $2,099 on sale, from a regular $2,999. The dome alone is about $1,999.
What warranty does the Sunlighten Solo have?
The Solo carries 7 years on heaters, 3 years on the Solo and SoloPad controllers, and 1 year on heater fabric and SoloPad foam for residential use.