The short answer: Clearlight’s Sanctuary 2 is a two-person, full-spectrum infrared cabin: two 500 W True Wave heaters on the front wall plus far-infrared heaters on the back, sides, calves and under the floor, drawing 2,260 W on a 120 V, 20 A outlet (Clearlight’s page, checked 29 Sept 2026). Clearlight calls it low-EMF and offers a residential lifetime warranty. Clearlight’s page shows no price (“Get Pricing”, plus a $500 sale banner and 18-month financing with $999 down), so the price comes from resellers: about $7,300 to $7,800 at three US retailers (Evergreen Softub, Purely Relaxation, Synergy Health), depending on wood, with basswood the cheaper. An earlier version of this page said about $4,995; that was wrong. Buy it if you want a plug-in home cabin; do not buy it expecting proven life extension, because the trials do not show that.
Specs from Clearlight
For comparison, Sunlighten’s mPulse Believe is also a two-person unit but its page hides numeric specs behind expanders, and third-party guides quote $7,500 to $9,000 for the two-person mPulse (see Sunlighten mPulse review). We did not verify that range on Sunlighten’s own site. The earlier version of this page called the Sanctuary 2 far-infrared only; Clearlight’s page says full spectrum.
What the research says about infrared saunas
- Heart failure. A 2018 meta-analysis of nine studies (infrared only) found sessions of 15 minutes at 60 C, five times a week for 2 to 4 weeks, were linked to lower BNP and better ejection fraction, with no effect on blood pressure. Patients, short-term, evidence rated moderate to insufficient.
- Healthy women. A 2022 crossover trial of 10 women found an infrared sauna raised body temperature but produced no significant differences in blood pressure, arterial stiffness or HRV against exercise or rest.
- Longevity. The big longevity numbers come from a Finnish cohort of 2,315 men using traditional saunas; it is observational and not about infrared units. More in home saunas: what the studies show.
On EMF, we found no independent measurement of this model; treat “low EMF” as a marketing claim.
Who it suits, who should skip it
Pick it if you have the floor space, a dedicated 20 A circuit and want a plug-in two-person cabin with a long warranty, and you understand the health claims are unproven. Sauna routines: sauna protocol.
Skip it if you are pregnant, have heart disease, low blood pressure or take medicines that affect heat tolerance (ask your doctor first), or you want a proven longevity intervention. Cheaper heat options exist; see the cold plunge evidence and other recovery devices.
Method note
Researched from Clearlight’s product page and PubMed records, checked 29 Sept 2026. We did not test the sauna. Prices change with sales and region. General information, not medical advice. Longevity Intel earns a commission on some affiliate sales.
