Clearlight Sanctuary™ 5 Person Infrared Sauna Review: Is It Worth the Investment?

I Get It — Choosing a Home Sauna Is a Big Decision

You’ve probably spent hours scrolling through sauna websites, trying to figure out which brand actually delivers on its promises. I know that feeling. There’s a lot of marketing noise in this space, and it’s hard to separate real value from hype.

I dug into the specs, the science behind infrared heat, and real customer feedback on the Clearlight Sanctuary™ 5 person infrared sauna so you don’t have to. This review breaks down exactly what you’re getting, what it costs, and who it’s actually a good fit for.

Product Overview

The Sanctuary™ 5 is one of Clearlight’s larger full spectrum infrared saunas, built to comfortably seat up to four adults. It’s part of the Sanctuary line, which uses near, mid, and far infrared wavelengths at the same time — something Clearlight markets as “true Full Spectrum” heat.

This model includes an ergonomic recliner bench with two extra heaters built in, smartphone app control, Bluetooth audio, and chromotherapy lighting. It’s designed for people who want a bigger, more social sauna experience — think family use or multiple people relaxing together — rather than a compact solo unit.

Key Features and Benefits

Full Spectrum True Wave® Heaters

The Sanctuary 5 uses four 500W True Wave® full spectrum heaters on the front wall, plus additional far infrared heaters on the back wall, side walls, behind your calves, and under the floor. Clearlight combines carbon and ceramic materials in these heaters, which is meant to produce a more even, deeper heat than single-material heaters.

If you’re someone who gets cold easily or wants heat surrounding you from multiple angles rather than just from the front, this layout could be a meaningful difference-maker.

Built-In Ergonomic Backrest and Recliner Bench

The recliner bench is chiropractor-designed and comes with two dedicated heaters. If back comfort during long sessions matters to you — say, if you’re planning 20-30 minute sessions regularly — this could make the experience noticeably more comfortable than a flat bench.

Low EMF/ELF Design

Clearlight states its heaters are tested to cancel out electromagnetic (EMF) and electrical (ELF) fields. This matters if you’re sensitive to EMF exposure or simply prefer to minimize it during a wellness activity. Worth noting: infrared radiation itself is non-ionizing radiation, meaning it’s a different — and considered safer — category than the ionizing radiation from X-rays.

Digital Keypad and Smartphone App Control

You can control temperature, time, lighting, and heater intensity from a keypad inside the cabin or remotely through an app. If you like preheating your sauna before you get home from work, this feature alone could save you some waiting time.

Bluetooth Audio System

Built-in Bluetooth and AUX inputs let you stream music or podcasts. Small feature, but if relaxation is the whole point, having your own playlist going probably helps.

Weight and Dimensions

• Interior: 76 1/4″ W x 44″ D x 72 1/2″ H
• Exterior: 82 1/4″ W x 47 1/4″ D x 77″ H
• Weight: 727 lbs
• Electrical: 240V, 3,960 watts, 16.5 amps, NEMA 6-20p plug

That’s a large footprint and a dedicated 240V circuit — this isn’t a plug-and-play unit you just place in a spare corner. Clearlight recommends leaving at least 4 inches of clearance around the cabin if you’re building it into an enclosed space.

Pros and Cons

Here’s the honest breakdown after weighing the features against the price and what current owners report.

Verdict: This is a premium, well-built sauna, but it’s a genuine investment — both financially and in terms of home space and electrical setup.

Who Is This Product For? My Honest Take

The Sanctuary 5 might be a good fit if you have the space, budget, and household size to justify a 4-person unit. It’s built for people who want to make sauna use a regular part of their routine, not an occasional novelty.

• Families or couples who want to sauna together regularly
• Homeowners with a dedicated 240V outlet or the budget to install one
• Anyone prioritizing full spectrum heat over far-infrared-only saunas
• Buyers comfortable with a $5,000+ purchase

If you live alone, have limited space, or are on a tighter budget, one of Clearlight’s smaller Sanctuary or Premier models might make more sense.

Customer Reviews

I looked through independent reviews on Trustpilot to get a sense of real ownership experience, not just the marketing copy.

On the positive side, one Trustpilot reviewer described their sales rep as patient and educational rather than pushy, and said they were extremely happy with their outdoor Sanctuary 5 and additional wellness products after using it.

Not every review was glowing, though. Another customer on the same platform said they were told they’d get a lifetime warranty during the sales process, but later found that wasn’t actually the case once they tried to use it — which is worth asking your sales rep to clarify and put in writing before you buy.

Other owners mentioned that outdoor units held up well to years of weather exposure, which is reassuring if you’re considering an outdoor placement.

FAQ & Additional Tips

How much does the Sanctuary 5 cost?

Clearlight doesn’t list exact prices publicly — you request a quote through their site. Based on third-party pricing breakdowns, the Sanctuary series (which includes the 5-person model) typically runs from about $5,000 to over $14,000, depending on wood type and add-ons. At the time of writing, Clearlight was also offering $400 off as part of a seasonal sale, with financing available from around $172/month.

Where can I buy it?

Directly through Clearlight’s website, where you can request pricing and speak with a sauna specialist about your space and electrical setup.

What’s the warranty?

Clearlight advertises a lifetime warranty on components for residential use. Given the mixed reviews mentioned above, I’d recommend getting the exact warranty terms in writing before purchasing, rather than relying on verbal promises from a sales call.

How often should you use an infrared sauna?

According to Mayo Clinic, infrared saunas produce effects similar to moderate exercise — increased heart rate and sweating — at lower temperatures than traditional saunas. Most sources suggest starting with shorter 10-15 minute sessions a few times a week and building up gradually, staying hydrated throughout.

Do infrared saunas actually work?

This is where I want to be straight with you: the science is promising but still developing. Mayo Clinic notes that several studies point to potential benefits, and no harmful effects have been reported. A review published in Canadian Family Physician found supporting evidence specifically for people with congestive heart failure and coronary risk factors, but cautioned that manufacturer claims often go beyond what’s been formally studied. Detoxification claims, in particular, are met with more skepticism — WebMD points out that the body already detoxifies itself naturally, regardless of sauna use.

So if you’re buying mainly for relaxation, muscle recovery, or as a substitute for exercise-like cardiovascular effects on days you can’t work out, there’s reasonable evidence behind that. If you’re expecting it to “detox” your body of toxins, treat it as a nice bonus claim rather than a proven outcome.

Final Verdict

The Clearlight Sanctuary™ 5 person infrared sauna is a well-built, feature-rich option if you have the space, the electrical setup, and the budget for a premium full spectrum sauna that fits the whole family. The build quality and heater design are genuinely solid, and the science behind infrared heat’s cardiovascular and relaxation benefits is reasonably supported, even if some marketing claims outpace the research.

If your space or budget is tighter, it might be worth having Clearlight’s team walk you through their smaller Sanctuary models instead. But if you’re ready for a 4-person, full spectrum sauna and can commit to the investment, you can check current pricing and availability here.