# Peak indoor infrared saunas vs Sunlighten infrared saunas

>  Peak indoor infrared saunas: 8 on sale, priced $4,950 to $10,750. Sunlighten infrared saunas: 13 on sale, priced $5,499 to $10,299. Largest sauna: 44 × 61 × 75 in (Peak Saunas Matterhorn 3-Person Full Spectrum Infrared Sauna) against 70.6 × 85.6 × 79 in (Sunlighten mPulse Intelligent Sauna Empower). Most seats: 3 (Peak Saunas Matterhorn 3-Person Full Spectrum Infrared Sauna) against 5 (Sunlighten mPulse Intelligent Sauna Empower). Hottest claimed top temperature: 150 °F (Peak Saunas Crown 2-Person Full Spectrum Infrared Sauna) against 170 °F (Sunlighten Amplify RED II).

| | [Peak indoor infrared saunas](https://saunagrid.com/lines/peak-saunas-indoor/) | [Sunlighten infrared saunas](https://saunagrid.com/lines/sunlighten-infrared/) |
|---|---|---|
| Products on sale | 8 | 13 |
| Categories | Saunas (8) | Saunas (13) |
| Price range | $4,950 – $10,750 | $5,499 – $10,299 |
| Largest sauna | 44 × 61 × 75 in (Matterhorn 3-Person Full Spectrum Infrared Sauna) | 70.6 × 85.6 × 79 in (mPulse Intelligent Sauna Empower) |
| Most seats | 3 (Matterhorn 3-Person Full Spectrum Infrared Sauna) | 5 (mPulse Intelligent Sauna Empower) |
| Hottest claimed top temperature | 150 °F (Crown 2-Person Full Spectrum Infrared Sauna) | 170 °F (Amplify RED II) |
| Thickest walls | none published | none published |
| Where sold | Peak Saunas | list price only |

## Questions

**Which is cheaper, Peak indoor infrared saunas or Sunlighten infrared saunas?**
On the prices we have (as of October 10, 2026), the cheapest of the Peak indoor infrared saunas is the [Crown 2-Person Full Spectrum Infrared Sauna](https://saunagrid.com/products/peak-saunas-indoor-crown-2-person-full-spectrum-infrared/) at $4,950, and the cheapest of the Sunlighten infrared saunas is the [Signature I](https://saunagrid.com/products/sunlighten-infrared-signature-i/) at $5,499. Prices are re-checked weekly.

**Which has more models, Peak indoor infrared saunas or Sunlighten infrared saunas?**
Peak indoor infrared saunas: 8 on sale. Sunlighten infrared saunas: 13 on sale.

**Which seats more people, Peak indoor infrared saunas or Sunlighten infrared saunas?**
By the brands' own figures: 3 for Peak indoor infrared saunas ([Matterhorn 3-Person Full Spectrum Infrared Sauna](https://saunagrid.com/products/peak-saunas-indoor-matterhorn-3-person-full-spectrum-infrared/)) and 5 for Sunlighten infrared saunas ([mPulse Intelligent Sauna Empower](https://saunagrid.com/products/sunlighten-infrared-mpulse-intelligent-empower/)).

**Which gets hotter, Peak indoor infrared saunas or Sunlighten infrared saunas?**
By the brands' own figures: 150 °F for Peak indoor infrared saunas ([Crown 2-Person Full Spectrum Infrared Sauna](https://saunagrid.com/products/peak-saunas-indoor-crown-2-person-full-spectrum-infrared/)) and 170 °F for Sunlighten infrared saunas ([Amplify RED II](https://saunagrid.com/products/sunlighten-infrared-amplify-red-ii/)). What the brand says the room reaches. Not measured by us; infrared saunas typically claim 140-150 °F, traditional 185-195 °F.

Full product lists with specs and sources: [Peak indoor infrared saunas](https://saunagrid.com/lines/peak-saunas-indoor/index.md), [Sunlighten infrared saunas](https://saunagrid.com/lines/sunlighten-infrared/index.md). Page: https://saunagrid.com/vs/peak-vs-sunlighten/

---
SaunaGrid lists home saunas from every brand side by side, with a source for every spec and a date on every price. [How we compare](https://saunagrid.com/how-we-compare/). Data as of 2026-10-10.