Brain Sleep Inc. (Head Office: Chiyoda-ku, Tokyo; Representative Director: Atsushi Hirota; hereinafter "Brain Sleep") supervised the development of new concept rooms that evolve the "good sleep" initiatives provided by Superhotel Co., Ltd. (Head Office: Osaka City, Osaka Prefecture; Representative Director and President: Kensaku Yamamoto; hereinafter "Superhotel").These concept rooms will be available starting Saturday, November 1, 2025, at Superhotel Premier Tokyo Station Yaesu Central Exit. Background For many guests staying at a hotel, the longest time spent is "sleep." However, hotels are a different environment from home, and sleep tends to be disturbed, such as becoming light due to differences in sound, light, temperature, and bedding.Superhotel has a philosophy of "starting the day energized with a good night's sleep" and established the "Gussuri Research Institute" in 2004 in collaboration with Dr. Norinaga Shimizu, Honorary Professor at Osaka Prefecture University. They have implemented scientifically-backed "good sleep experiences" nationwide, including the introduction of health ionic water, eight types of pillows to choose from, natural hot springs, and humidity control using diatomaceous earth on guest room ceilings. They also introduced the industry's first "Accommodation Quality Assurance System," which refunds accommodation fees if a guest cannot sleep well during their stay and cannot change rooms.To further evolve the "good sleep" experience, Superhotel requested Brain Sleep to supervise the upgrade of the sleep environment. About the Concept Rooms ① Space Design with approximately 45% Wood Interior in the Guest Room Approximately 45% of the room's interior is finished with natural wood, maximizing the relaxation effect from the scent of wood.Research has confirmed that in spaces with a 45% wood ratio, deep sleep duration extended by an average of 14 minutes, contributing to recovery from daytime fatigue and improved concentration *1.Additionally, the unique insulation and humidity-regulating effects of wood moderate indoor temperature fluctuations, maintaining a comfortable sleep environment throughout the year.This is a crucial element for regulating the "bedroom temperature and humidity environment," which affects sleep quality, and provides a comfortable sleep experience as if sleeping in a forest.The wood used this time is cedar from Morotsuka Village, Miyazaki Prefecture, which has the "Takachiho-go and Shiibayama Region" recognized as a World Agricultural Heritage site in 2015, and with which Superhotel has concluded an agreement regarding regional revitalization projects. This is a circular initiative that not only provides a high-quality sleep environment but also contributes to the utilization of sustainable forest resources and regional revitalization. *1 Mikako Nishimura. Subject experiment on residential wood interior ratio to improve sleep quality and daytime intellectual productivity. https://www.jstage.jst.go.jp/article/shasetaikai/2016.6/0/2016.6_265/_pdf/-char/ja ② Support for "Smartphone Detox" with Wireless Charging By utilizing the wireless charging space located away from the bed, the design naturally encourages a "smartphone detox."Research indicates that smartphone use before sleep suppresses melatonin secretion and delays sleep onset *2, and depending on the content viewed, it can heighten brain arousal and hinder deep sleep *3.By simply moving your smartphone away from your hands for charging, light and information stimuli are blocked, reducing awakenings due to notifications or vibrations. This design aims to enhance sleep continuity and regulate the awakening rhythm for the next morning, creating a "new habit of charging and resting." *2 Chang A-M. et al. (2015). PNAS, 112(4), 1232–1237.*3 Exelmans L. & Van den Bulck J. (2016). Social Science & Medicine, 148, 93–101. ③ Natural Awakening with a Wake-Up Light An LED light that simulates the morning sun and a pleasant alarm stimulate the body's internal clock, promoting a natural awakening.As the light intensity gradually increases, awakening hormones such as cortisol and serotonin are secreted, leading to a less stressful awakening and a reduction in sleep inertia (grogginess upon waking) *4.Even though it is artificial lighting, it recreates "a natural awakening as if roused by the sun," supporting a regular sleep rhythm even when traveling or on a business trip. *4 Giménez M.C. et al. (2010). Journal of Sleep Research, 19(3), 425–435. ④ "Brain Sleep Pillow" Introduced for the First Time at Superhotel The "Brain Sleep Pillow," which embodies the methods of "Stanford's Best Sleep," has been introduced for the first time at Superhotel.Its unique structure releases heat from the head without trapping it, lowering brain temperature and inducing deep sleep. Research reports that a decrease in head temperature contributes to faster sleep onset and longer deep sleep duration *5.Furthermore, its 3-layer, 9-gradient structure naturally supports the head and neck, maintaining ideal cervical alignment without hindering turning over. This relieves muscle tension, reduces micro-awakenings during sleep, and enhances recovery from fatigue.Experiments have shown that even with one hour less sleep, the recovery rate from fatigue is approximately 16% higher compared to a regular pillow *6. *5 https://www.jstage.jst.go.jp/article/onki/78/1/78_6/_article/-char/ja/*6 Brain Sleep Inc. "Brain Sleep Pillow Function Comparison Test" (2024) 【Store Overview】 Store Name: Superhotel Premier Tokyo Station Yaesu Central ExitLocation: 2-2-7 Yaesu, Chuo-ku, TokyoOfficial HP: https://www.superhotel.co.jp/s_hotels/yaesu/ Company Name: Superhotel Co., Ltd.Location: 1-7-7 Nishihonmachi, Nishi-ku, Osaka City, Osaka PrefectureRepresentative Director and President: Kensaku YamamotoCompany HP: https://www.superhotel.co.jp/
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