# Retractable Sauna Systems KLAFS S1 Sauna Expands from a Compact Unit into a Full Enclosure By Amy Duong | Published 2026-03-25 | Lifestyle Source: Trend Hunter, https://www.trendhunter.com/trends/s1-sauna References: [klafsusa](https://klafsusa.com/s1)  The KLAFS [S1](https://www.trendhunter.com/trends/rectractable-sauna) sauna is a retractable wellness unit developed by German manufacturer KLAFS, a subsidiary of [Kohler](https://www.trendhunter.com/trends/kohler). The system is designed to compress into a compact form roughly the depth of a standard cabinet, then expand into a [full sauna enclosure](https://www.trendhunter.com/trends/sun-home-saunas) at the touch of a button. When extended, the structure increases to approximately 160 centimeters in depth, providing space for two to three users within a single unit. The sauna uses an automated extension mechanism that unfolds the enclosure in around 20 seconds, with integrated benches and headrests positioned within the interior. The unit is equipped with KLAFS’ SANARIUM system, offering multiple climate modes that adjust temperature, humidity, and airflow. Exterior finishes include matte black and walnut, paired with a wood-lined interior and glass elements that allow the structure to integrate into residential spaces. Controls are embedded within the system to manage extension, lighting, and climate settings. Image Credit: Kohler, KLAFS ## Trend Insights (Trend Hunter) - Score: 6.2/10 - Popularity: 64% | Activity: 56% | Freshness: 66% - Audience gender: 50% men, 50% women - Primary generations: Gen Z, Millennial, Gen X - Top markets: North America, South America, Europe, Asia, Africa ## Categories [Trend Hunter](https://www.trendhunter.com/trends) > [Lifestyle](https://www.trendhunter.com/lifestyle) ## Key Themes ### What's Driving This Trend - **Space-saving Wellness Furniture:** Emerging consumer preference for compact wellness fixtures reshapes product design and creates new models for modular health experiences within urban apartments. - **Automated Transforming Interiors:** Mechanized fold-out systems that convert small footprints into fully functional rooms introduce possibilities for multifunctional living spaces and plug-and-play amenities. - **Integrated Smart Climate Therapy:** Converging climate-control technologies with wellness protocols points toward personalized micro-environments that tailor humidity, temperature, and airflow for therapeutic outcomes. ### Who This Affects Most - **Residential Architecture:** Urban housing design is being influenced by retractable installations that allow high-end wellness features to be incorporated into limited square footage without permanent spatial trade-offs. - **Luxury Home Appliances:** Premium appliance makers face opportunities to combine automation, refined finishes, and embedded controls into seamless lifestyle products that blur furniture and equipment boundaries. - **Hospitality and Spa Design:** Boutique hotels and spas could leverage compact deployable saunas to offer in-room or modular wellness services that scale amenities without major construction. ## Related on Trend Hunter - [Social Wellness Clubs](https://www.trendhunter.com/trends/nrg-haus.md) - [Red Light Therapy Saunas](https://www.trendhunter.com/trends/red-light-therapy-sauna.md) - [Infrared Sauna-Supplement Partnerships](https://www.trendhunter.com/trends/perspire-sauna-studio.md) - [Paris Office Residences](https://www.trendhunter.com/trends/saintgermain-i.md) - [Wellness Recovery Events](https://www.trendhunter.com/trends/torontos-the-wellness-club.md) - [Lisbon Family Townhouses](https://www.trendhunter.com/trends/lisbon-townhouse.md) - [Island Tree Saunas](https://www.trendhunter.com/trends/puusauna.md) - [Alpine Thermal Spas](https://www.trendhunter.com/trends/basin-glacial.md) - [Globally Inspired Sauna Destinations](https://www.trendhunter.com/trends/the-sauna-summit.md)