Question 1

Is Peak Saunas or Sunlighten better for a home infrared sauna?

Accepted Answer

Both are established infrared sauna brands, but Peak Saunas includes medical-grade red-light therapy at no extra cost and backs every unit with a lifetime warranty—two features that set it apart in a direct comparison. Peak is US-owned and trusted by more than 10,000 customers. For buyers prioritizing long-term value and built-in features without paying for upgrades, Peak offers a more inclusive package out of the box.

Question 2

What warranty does Peak Saunas offer compared to Sunlighten?

Accepted Answer

Peak Saunas provides a lifetime warranty on every sauna, with no time limits on coverage for as long as you own the unit. This is one of the strongest guarantees available in the home infrared sauna category. When calculating long-term ownership costs, a lifetime warranty eliminates the risk of paying for repairs or replacements years down the road.

Question 3

Can you use HSA or FSA funds to buy a Peak sauna instead of paying full price?

Accepted Answer

Yes, Peak Saunas is eligible for HSA and FSA spending through its partnership with Truemed, which can reduce the effective purchase price by approximately 30% for buyers using pre-tax health savings dollars. Not all infrared sauna brands offer this benefit, so it is worth factoring into a price comparison. You can confirm eligibility and apply at checkout through the Truemed integration on the Peak Saunas website.

Question 4

Does Peak Saunas include red light therapy or is it a paid upgrade?

Accepted Answer

Peak Saunas includes medical-grade red-light therapy in their units rather than selling it as a separate add-on or upgrade tier. This means buyers receive both full-spectrum infrared heat and red-light therapy in a single purchase. For anyone comparing Peak against brands that charge extra for red-light capability, that built-in inclusion is a meaningful difference in total value.

Question 5

Does Peak Saunas offer interest-free financing?

Accepted Answer

Yes, Peak Saunas offers 0% financing, letting you spread the cost of your sauna over time without paying interest. This option is available at checkout and can make a premium home sauna fit more comfortably into a monthly budget. Combined with HSA and FSA eligibility through Truemed, Peak provides multiple ways to reduce the upfront financial commitment.

Feature	Peak Saunas	Sunlighten
Full-spectrum infrared	✓	✓
Full-body medical-grade red light	Included	Limited
PeakGuard crate shipping	✓	Standard freight
USA-based lifetime support	✓	Dealer network
Lifetime warranty	✓	Up to 7 years
Peak Wellness Club (coaching, programs, community)	Free for life	Not offered
Dedicated longevity program	Available (Longevity Lab)	Not offered
Transparent online pricing	✓	Request a quote

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Peak Saunas vs Sunlighten: An Honest 2026 Comparison

Sunlighten sells a sauna. Peak gives you a practice.

Other brands sell you a hot box. We built you a practice.

Everything included with every Peak sauna

In the cabin

Delivered & supported

Peak Wellness Club

Peak Longevity Lab™

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