Brain Sleep Co., Ltd. (Head office: Chiyoda-ku, Tokyo; Representative Director: Atsushi Hirota; hereinafter "Brain Sleep") conducted a fatigue recovery verification (hereinafter "this verification") comparing urethane pillows (hereinafter "general functional pillows"), which are widely used in Japan, with its main product, the "Brain Sleep Pillow," which helps the brain sleep. This verification confirmed that the "Brain Sleep Pillow" resulted in higher fatigue recovery even with one hour less sleep compared to general functional pillows. Background of the verification Brain Sleep conducts an annual "Sleep Score® Survey" targeting 10,000 employed individuals across Japan's 47 prefectures (allocated by gender, age, and prefecture). The 2024 edition※1 of this survey, which Brain Sleep has been conducting since 2020, revealed that the average sleep duration was 6 hours and 50 minutes, the longest in the past five years of the survey, marking a 23-minute increase compared to when the survey began. However, this sleep duration is still 98 minutes shorter than the average sleep duration of 8 hours and 28 minutes in OECD member countries as reported in 2021, and remains among the lowest in the world. Furthermore, the "Sleep Score® Survey" indicated that the ideal sleep duration is 7 hours and 40 minutes, a 50-minute difference from the actual average sleep duration. This result shows that many people experience a discrepancy between ideal and actual sleep duration due to various lifestyle factors such as work, childcare, and elderly care.Brain Sleep advocates for "brain-sleeping sleep," where sleep not only rests the body but also enhances daytime performance. We believe that improving sleep quality, not just duration, is crucial. A verification announced in January 2023 revealed that "changing pillows increases the proportion of deep sleep※2," providing objective data that shows the potential for improving sleep quality. Since sleep quality is difficult to visualize, we conducted a new verification on the relationship between pillows and "fatigue recovery," one of the roles of sleep. ※1 2024 "Sleep Score®" Survey Results:https://prtimes.jp/main/html/rd/p/000000193.000046684.html※2 Increased proportion of deep sleep within the "Golden 90 minutes" immediately after falling asleep with the "Brain Sleep Pillow":https://prtimes.jp/main/html/rd/p/000000146.000046684.html Verification content and results Subjects: 19 men and women aged 20-30s (15 valid data points※3)Test method: Crossover study comparing fatigue recovery the next day after "7 hours of sleep with a general functional pillow" and "6 hours of sleep with the Brain Sleep Pillow"Measurement items: Fatigue/stress meter※4, activity tracker, questionnaire evaluation using VAS (Visual Analogue Scale) method (OSA Sleep Inventory)※5※3: 4 individuals were excluded due to invalid data※4: Device that objectively measures fatigue recovery based on autonomic nervous system balance using vital sensors※5: A common sleep evaluation method proposed by the Japanese Society of Sleep Improvement, which statistically scales sleep perception<Verification results> "6 hours of sleep with the Brain Sleep Pillow" resulted in116% fatigue recovery compared to "7 hours of sleep with a general functional pillow" In this verification, CCVTP※6 was measured at two time points: 4 hours after waking up (at the time of commuting) and 10 hours after waking up (at the time of leaving work) on the day following the target night. It was confirmed that "6 hours of sleep with the Brain Sleep Pillow" resulted in significantly higher CCVTP compared to "7 hours of sleep with a general functional pillow." This indicates that using the "Brain Sleep Pillow" leads to higher fatigue recovery, even with one hour less sleep compared to a general functional pillow.※6 Fatigue is represented by the CCVTP index, which indicates the activity level of the autonomic nervous system. A higher value indicates lower fatigue and stress. Therefore, in this verification, fatigue recovery through sleep was measured using CCVTP. <Discussion>The Ministry of Health, Labour and Welfare's "Health Sleep Guide 2023" indicates an appropriate sleep duration of 6 to 8 hours for adults. While sleep duration is an important indicator, various surveys show that securing sufficient sleep is challenging. In addition to the deep sleep ratio verification conducted by Brain Sleep in January 2023, we have now conducted a verification of sleep duration and quality. This has revealed that by using the "Brain Sleep Pillow," which is developed and sold with a thorough commitment to improving sleep quality, it is not only easier to achieve the deep sleep of the "Golden 90 minutes" immediately after falling asleep, which is considered the most important time for sleep, but also to achieve sleep that efficiently promotes fatigue recovery even when extending sleep duration is difficult. Brain Sleep believes that the use of high-quality bedding can help solve current sleep problems. Sleep is not just about duration, but also quality. What are the "Golden 90 Minutes" that determine quality? Brain Sleep refers to the approximately 90 minutes immediately after falling asleep, when the deepest non-REM sleep occurs, as the "Golden 90 Minutes." During these 90 minutes, five important physiological phenomena of sleep are particularly active: "rest for the brain and body," "organization and consolidation of memories," "hormone balance adjustment," "immune system boost," and "removal of brain waste products."When it comes to sleep, "quality, not just duration" is important. For Japanese people, who tend to have insufficient sleep duration, deepening and slightly extending the first 90 minutes of sleep can lead to improved sleep quality. High fatigue recovery even with short sleep! Features of the "Brain Sleep Pillow," the only pillow combining breathability and fit In addition to the "Golden 90 Minutes," which is when the deepest non-REM sleep occurs, maintaining the appropriate temperature and humidity within the bedding is crucial for achieving good quality sleep. Made with a unique material and over 90% air layers, it prevents heat and humidity from accumulating in the pillow during sleep, creating a comfortable sleep environment. 1. Excellent breathability "cools the brain for fast, deep sleep"With over 90% air layers, it prevents heat and moisture generated during sleep from accumulating in the pillow, creating a comfortable sleep environment. 2. Three-layer, nine-gradation structure that achieves a personal fit with proprietary patented technologyIt has a rational structure with three types of fiber thicknesses and densities: an "adjust layer" that softly conforms to the shape of the head, a "support layer" that firmly supports the head and neck, and a "base layer" that allows air to escape from below. The patented technology realizes a three-layer, nine-gradation structure that gradually adapts to the size and sleeping position of the head. It becomes your personal pillow with each use. 3. Cleanable by showering with waterIt is said that humans sweat about one cup (approx. 200ml) during sleep. With over 90% air layers, it is highly breathable, preventing moisture buildup, and is hygienic. Furthermore, not only can the cover be washed, but the inner material can also be washed with water, and it dries quickly, so it can always be kept clean. <Product Details> Product name: Brain Sleep PillowPrice: 33,000 yen (tax included)Sizes: Low 60×35×6/8cm, Standard 60×35×9/11cm, High 60×35×12/14cmURL: https://brain-sleep.com/products/pillow The "Brain Sleep Pillow" to appear in transit advertising! Lines to be displayed・JR East all lines in the Tokyo metropolitan area(Keihin-Tohoku Line/Negishi Line/Yokohama Line/Nambu Line/Tsurumi Line/Sagami Line/Saikyo Line/Rinkai Line/Yamanote Line/Joban Line/Yokosuka Line/Sobu Line Rapid/Chuo Line Rapid/Chuo Line/Sobu Line Local/Keiyo Line/Ome Line/Itsukaichi Line/Musashino Line/Shonan Shinjuku Line/Ueno Tokyo Line/Tsukuba Express)・Tokyo Metro (Ginza Line/Marunouchi Line/Hibiya Line) Display periodSeptember 16 (Mon) - 22 (Sun)