Towards a New Standard in Sleep: "Brain Sleep Pillow" Renewed! Enhanced Softness x Maintained Resilience for High-Performance Personal Fit

Brain Sleep Co., Ltd. (Headquarters: Chiyoda-ku, Tokyo; Representative Director: Atsushi Hirota; hereinafter "Brain Sleep") will release a renewed version of its signature functional pillow, the "Brain Sleep Pillow," on Wednesday, July 29, 2026, at 10:00 AM. Pre-orders will begin on Wednesday, July 8, 2026, at 10:00 AM on the Brain Sleep Official Site. With the philosophy that "the pillow determines sleep quality," this renewal enhances the softness that naturally conforms to the head from the first use, while maintaining the resilience and excellent breathability that resets every night. The pillow has been updated to gently envelop the head while providing firm support. It offers a sleep experience that achieves a personal fit tailored to each individual, providing a new standard for sleep. Additionally, customers who purchase during the pre-order period will receive a "Brain Sleep Pillow Cover Perfect Cool EX" to support comfortable sleep even on hot summer nights.

Background of the Renewal

With the mission to "solve the sleep problems of Japanese people," Brain Sleep developed and launched its first signature product, the "Brain Sleep Pillow" (hereinafter, "this product"), in 2020, the year after its founding. The concept was a pillow that allows the brain to sleep. This pillow was developed by combining the methods from the bestseller "Stanford-style Best Sleep," which has sold over 420,000 copies, with years of sleep research knowledge. It focuses on the crucial first 90 minutes of sleep, known as the "Golden 90 Minutes," which significantly impacts sleep quality, aiming to enhance the quality of deep non-REM sleep. This product, filled with the desire to "deliver correct sleep knowledge and products that embody it," has been cherished by over 300,000 users. Key elements for a pillow are "fit" to properly support the head and "breathability" to dissipate heat during sleep. Since its launch, this product has undergone two renewals, pursuing a sleeping comfort that naturally fits each individual's head and various sleeping postures.

This renewal maintains the excellent breathability of the previous version while updating it to provide a natural fit from the very first use. Moving forward, we aim to continue providing products that contribute to improving the sleep quality of more people.

What is the "Personal Fit" Pursued by Brain Sleep?

This renewal enhances the fit that comfortably envelops the head from the moment it's placed, improving the softness that conforms to the head from the first use, while balancing stability for firm support and excellent pressure distribution. Furthermore, there are many voices emphasizing "fit" when choosing a pillow. In Brain Sleep's "Sleep Deviation® Survey 2020," "fit" was the most frequently cited point of importance when selecting a pillow. This product is created through a meticulous and unique manufacturing process, starting with a "weaving" of a three-dimensional structure using patented technology, followed by "cutting" performed by artisans one by one, and "resin stabilization" where the material is allowed to settle for 72 hours. In this renewal, by adding a new process using the latest technology to this manufacturing process, the pillow has evolved from one that "conforms to the head with use" to one that provides a comfortable fit that envelops the head from the very first use. In fact, a comparison of pressure distribution between a single-layer polyethylene pillow and this renewed pillow showed that the renewed pillow has a wider range of colored areas indicating body pressure, demonstrating that the pressure is evenly distributed without bias. (※Diagram) While maintaining excellent breathability, it achieves a sleeping comfort that naturally fits each individual's head shape and sleeping posture, aiming for further improvement in sleep quality.

※Diagram: The white areas indicate parts of the body that are floating. In a single-layer polyethylene pillow, due to uniform hardness, body pressure is concentrated on the head and neck, creating a state where the body is supported at points. In contrast, the renewed pillow shows body pressure being distributed from the head to the back.

Features of the "Brain Sleep Pillow"

1. Overwhelming Breathability High breathability is crucial for quality sleep to maintain optimal temperature and humidity within the bedding. Since over 90% is an air layer, heat and moisture generated during sleep do not accumulate, creating a comfortable sleep environment.

2. Achieved with Patented Technology! 3-Layer, 9-Gradation Structure Pursuing Fit The vertical layers consist of an "Adjust Layer" that fits the size and weight of the head, a "Support Layer" that firmly supports the head and neck, and a "Base Layer" that supports the pillow while allowing air to escape from below, with three different thicknesses. This structure ensures a snug fit while firmly supporting the head and guaranteeing good breathability. The horizontal gradation is softest in the center and becomes more resilient towards the sides. In a supine sleeping position, it gently cradles the head, and in a side-sleeping position, it prevents the head from sinking too deeply. It provides comfortable fit from the first use in any sleeping posture.

3. Washable for Anytime Cleanliness It is said that humans sweat about one cup (approx. 200ml) of water during sleep. With excellent breathability, moisture does not accumulate, making it hygienic. Furthermore, not only the cover but also the core material can be washed with water and dries quickly, ensuring it can be kept clean at all times. It suppresses the growth of dust mites and mold and is washable for cleanliness.

What is the "Golden 90 Minutes" that Determines Sleep Quality?

The "Golden 90 Minutes" is the period of approximately 90 minutes immediately after falling asleep, during which the deepest non-REM sleep is achieved, as defined by Brain Sleep. During these 90 minutes, five important physiological phenomena crucial for sleep are particularly active: "rest for the brain and body," "organization and consolidation of memories," "regulation of hormone balance," "boosted immunity," and "removal of waste products from the brain." To achieve deep sleep during the "Golden 90 Minutes," it is important to dissipate body heat and lower core body temperature. This product, being over 90% air layer, prevents heat from accumulating due to its overwhelming breathability.

"Brain Sleep Pillow" Product Details

Product Name: Brain Sleep Pillow

Price (Tax Included): 33,000 yen (with pillow cover)

Sizes: Low 60x35x6/8cm, Standard 60x35x9/11cm, High 60x35x12/14cm

Release Date & Time: Wednesday, July 29, 2026, 10:00 AM onwards

Pre-order Start Date & Time: Wednesday, July 8, 2026, 10:00 AM onwards

Pre-order URL: https://brain-sleep.com/products/pillow_renewal

"Brain Sleep Eco Cycle Program"

The "Brain Sleep Pillow" uses high-purity, recyclable polyethylene material. In 2024, we launched the "Brain Sleep Eco Cycle Program"*1, a service for collecting and reusing used pillows, to circulate finite resources.

This is a cost-effective and sustainable service that allows customers to purchase a new pillow at a discounted price. Used pillows are returned to the manufacturing plant and reused as raw materials.

*1 Action on the low recycling rate of bedding that "changes the future with sleep" achieved through proprietary technology! Launch of "Brain Sleep Eco Cycle Program" for resource circulation https://prtimes.jp/main/html/rd/p/000000211.000046684.html

Brain Sleep Co., Ltd.

【Company Overview】 Established: May 2019 Location: JP Tower 26F, 2-7-2 Marunouchi, Chiyoda-ku, Tokyo Representative Director: Atsushi Hirota Brand Site: https://brain-sleep.com/ Business Activities: Brain Sleep is a solution company that scientifically approaches the brain and sleep by combining solid knowledge based on sleep medicine with advanced technology. Through sleep research in collaboration with experts, development of original products, and consulting for companies and clinics, we aim to awaken the potential of people and society with all sleep-specialized solutions.