Brain Sleep Co., Ltd. (Headquarters: Chiyoda-ku, Tokyo; Representative Director: Atsushi Hirota; hereinafter "Brain Sleep") will sponsor SAUNACHELIN 2025, Japan's largest sauna award that recognizes innovative sauna facilities as "the best sauna facilities to visit nationwide."Brain Sleep has demonstrated through past studies that sauna bathing is effective in improving sleep quality. In particular, "outdoor bathing after a sauna," which effectively lowers core body temperature and promotes deep sleep, is considered an important step for achieving high-quality sleep. Leveraging this sponsorship, Brain Sleep will offer an exquisite outdoor bathing experience at sauna facilities nationwide using the "Brain Sleep Pillow" and "Brain Sleep Mattress Float," which feature unique breathability technology, thereby contributing to an innovative "totonoi" (a state of deep relaxation) and "high-quality sleep" for more people. Background Brain Sleep has long focused on bathing and sauna use as methods to "control core body temperature," which is crucial for improving sleep quality. A study conducted in 2022 revealed that sauna bathing positively impacts sleep*. Furthermore, while there are many things to avoid before sleep to improve sleep quality, such as blue light and meals, sauna bathing is a valuable method that "can be done" to improve sleep quality. In particular, outdoor bathing after a sauna effectively lowers core body temperature, promoting deeper sleep. However, traditional outdoor bathing often lacks sufficient comfort, preventing people from fully utilizing their totonoi time. Therefore, by sponsoring this award and installing the highly breathable "Brain Sleep Pillow" and "Brain Sleep Mattress Float" in outdoor bathing areas, we aim to provide more people with an ultimate totonoi experience that efficiently dissipates the heat accumulated during a sauna, while also raising awareness about the importance of "high-quality sleep." *https://prtimes.jp/main/html/rd/p/000000131.000046684.html Brain Sleep outdoor bathing sets are gaining traction in sauna facilities! The Brain Sleep Outdoor Bathing Set (comprising the "Brain Sleep Pillow" and "Brain Sleep Mattress Float") has been highly praised for three key aspects: ① offering the ultimate lying-down outdoor bathing experience, ② efficiently reducing body temperature elevated after a sauna, and ③ being washable and hygienic. As a result, it has been adopted by approximately 30 sauna facilities nationwide, including the EXPO Sauna . Among the 12 facilities awarded SAUNACHELIN 2025 (including special awards), the following four facilities have already implemented our products: ・Sauna Tokyo・TOTOPA Tokyo Metropolitan Meiji Park Store・EXPO Sauna "Solar Bud"・KIWAMI SAUNA OsuExperience the Brain Sleep outdoor bathing at SAUNACHELIN-awarded facilities.SAUNACHELIN 2025 Special Page: https://www.saunachelin.com/brain_sleep/ Furthermore, 7 facilities that have received past SAUNACHELIN awards have also adopted our products.・Wellbe Sakae・Osaka Sauna DESSE・Toshimaen Niwanoyu・Stayable Sauna Shop Shinagawa Sauna・Nuka to Yuge・The Hive・The Sauna Launch of the TTNE collaboration mattress! We have developed a collaborative mattress, the "TTNE x Brain Sleep Sauna Mattress," an evolution of the "Brain Sleep Mattress Float" specifically for saunas, in collaboration with [TTNE], a sauna creative group known for producing the EXPO Sauna and organizing Japan's largest sauna award, . It will be exclusively released on "SAUNA SELECT," a specialized sauna construction website for homes and businesses operated by TTNE.Product Name: TTNE x Brain Sleep Sauna MattressProduct URL: https://sauna-select.com/collections/brain-sleep Pre-order Release: November 11 (Delivery in early December) SAUNACHELIN 2025 Sponsorship Commemoration "#MyFavoriteSaunaNeedsBrainSleep" SNS Campaign! To commemorate the SAUNACHELIN 2025 sponsorship, Brain Sleep will conduct an SNS campaign titled "#MyFavoriteSaunaNeedsBrainSleep" on its official X account (https://x.com/brainsleep0508). One participant who posts a sauna facility they wish to see Brain Sleep products installed in will receive a "Brain Sleep Pillow & Sauna Pillow Set." Furthermore, the selected facility will receive a "Brain Sleep Pillow & TTNE x Brain Sleep Sauna Mattress."Campaign Period: Tuesday, November 11, 2025 – Sunday, November 30, 2025How to participate: "Repost & Like" the campaign post on Brain Sleep's official X account, then post the "facility name" and "its appeal" where you'd like Brain Sleep products to be installed, using the hashtag "#MyFavoriteSaunaNeedsBrainSleep." A limited "Sauna Pillow Set" that allows you to carry the Brain Sleep outdoor bathing experience is also on sale! A limited-edition set consisting of the "Brain Sleep Pillow," a pillow for the sleeping brain, and the "Sauna Pillow," a mini Brain Sleep Pillow that supports cool-down during outdoor bathing and promotes deeper relaxation, is now available. This allows for the Brain Sleep outdoor bathing experience at any sauna facility, and also ensures high-quality sleep at bedtime. Product name: [Brain-soothing Sauna Pillow Set] Brain Sleep Pillow + Brain Sleep Pillow MiniPrice: 36,300 yen (tax included) What is the "Brain Sleep Pillow"? In addition to the "golden 90 minutes," which is the period when the deepest non-REM sleep occurs, it is also important to maintain appropriate temperature and humidity within the bed for good quality sleep. The "Brain Sleep Pillow" uses a unique material, with over 90% air-permeable layers, preventing heat and moisture build-up during sleep and creating a comfortable sleep environment. Product Details:Product Name: Brain Sleep PillowPrice: 33,000 yen (tax included) with pillowcaseSizes: Low 60×35×6/8cm, Standard 60×35×9/11cm, High 60×35×12/14cm URL: https://brain-sleep.com/products/pillow What is SAUNACHELIN? "SAUNACHELIN" annually announces and recognizes "the best sauna facilities to visit nationwide" on November 11th, "Totono-i Day." Established in 2018, this year marks its 8th anniversary. It nominates 11 innovative sauna facilities that have brought new value to saunas beyond traditional frameworks and delighted many sauna enthusiasts through their innovative endeavors, as judged by "pro saunners" from various industries who visit saunas across Japan. Out of over 12,000 sauna facilities nationwide, facilities are evaluated based on criteria such as cold plunges, outdoor bathing spaces, hospitality, gender segregation, pricing, cleanliness, entertainment value, and innovation. What is TTNE? [TTNE] is a sauna creative group led by "Totono-e Oyakata" (Master of Relaxation), Dai Matsuo, and "Sauna Shishou" (Sauna Master), Daisuke Akiyama, that continuously innovates in the sauna industry. They have produced over 100 sauna facilities and launched various sauna projects, including [TTNE], an industry-first specialized sauna brand shop, the "Japan Sauna Society" for medical research on saunas with 500 medical professional members, "SAUNACHELIN," the largest sauna ranking site in Japan with over 1 million monthly page views, "SAUNA37," the world's first sauna-specific global sauna award, and "SAUNA SELECT," a specialized sauna construction website for homes and businesses featuring carefully selected saunas from around the world.As the sole "PREMIUM SAUNA PARTNER" recognized by HARVIA JAPAN Co., Ltd., they operate a network of sauna dealers nationwide, working tirelessly for saunas with the aim of improving sauna culture both domestically and internationally.
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