A Unique Brain Sleep Collaboration at ROOFTOP
In an innovative partnership, ROOFTOP, a Finnish-style sauna located in Nishio-Nakubo, Tokyo, and Brain Sleep, a company dedicated to sleep solutions, are hosting an extraordinary event titled "Cloud-Nine Outdoor Bathing for the Brain." This special event will run from October 2 to November 30, 2025.
The concept focuses on achieving high-quality outdoor bathing that leads to improved sleep, creating an unforgettable experience for attendees. Guests can enjoy outdoor bathing in a serene environment that feels as if one is floating on clouds.
An Unforgettable Experience
As part of this collaboration, the ROOFTOP's rooftop area will be transformed with the installation of Brain Sleep's premium products, including the Breathable Brain Sleep Pillow and the Brain Sleep Mattress Float. These offerings will help regulate body temperature for deeper relaxation after sauna sessions, promoting a sense of tranquility that enhances sleep quality.
After enjoying the outdoor bathing, visitors can take advantage of the facilities at the adjacent co-working space, "LifeWork," where they can fully experience the comfortable sleep atmosphere the Brain Sleep products provide.
Moreover, event-goers will receive a special BRAIN SLEEP x ROOFTOP collaborative sticker featuring a QR code that enables them to purchase an exclusive "Brain Sleep Pillow Set" (including the Brain Sleep Pillow and a mini version) at limited availability. This initiative allows participants to incorporate relaxation techniques into their daily lives, making it a unique opportunity to take home the essence of balance and wellness.
Event Details
- - Event Name: Cloud-Nine Outdoor Bathing for the Brain
- - Location: ROOFTOP, 3-14-7 Nishio-Nakubo, Suginami-ku, Tokyo
- - Duration: October 2, 2025 - November 30, 2025
- - Operating Hours: 8:00 AM - 12:00 AM (Last entry at 11:00 PM)
About the "Brain Sleep Pillow Set"
- - Product Name: Brain Sleep Pillow Set
- - Contents: Brain Sleep Pillow + Miniature Brain Sleep Pillow
- - Price: 36,300 yen (tax included)
For more information, visit
Brain Sleep's official page. The unique materials, made up of over 90% air, provide an ideal sleep environment by regulating heat and moisture, maximizing the crucial 90 minutes of sleep for the best results. This innovative pillow is gaining attention, even being used at the Sauna
for the Osaka-Kansai Expo, providing exceptional sleep support for its users.
Facility Overview
Both ROOFTOP and LifeWork are operated by Messe Property Co., Ltd, offering a delightful combination of sauna and co-working spaces. The ROOFTOP features a spacious area for outdoor bathing and a fully-equipped Finnish sauna, including an auto-lounger system. With capacity for up to 50 individuals in Tokyo’s largest sauna room, visitors can enjoy their relaxing experiences to the fullest.
LifeWork provides a large co-working space with high-speed internet, online meeting booths, meeting rooms, partitioned desks, and relaxation spaces for events, supporting work, learning, and socializing.
Facility Information
- - Facility Name: ROOFTOP LifeWork Cafe
- - Location: 3-14-7 Nishio-Nakubo, Suginami-ku, Tokyo, 167-0053
- - Operating Hours: 8:00 AM - 12:00 AM (Last entry at 11:00 PM)
Visit the official site of ROOFTOP here and LifeWork Cafe here.
About Messe Property Co., Ltd.
Messe Property Co., Ltd. is committed to creating new places that fulfill the dual purpose of work and relaxation. Based in the Roppongi area of Tokyo, we operate various next-generation mixed-use facilities, including the authentic Finnish sauna ROOFTOP, the largest coworking space LifeWork, the world's largest sauna MONSTER WORK & SAUNA, and FLOBA, which features Japan's top-class high-concentration carbonated spring. Through spatial design and service delivery, we aim to revitalize local communities and foster new values in work, learning, and interaction.
Company Overview
- - Company Name: Messe Property Co., Ltd.
- - Location: 3-2-1 Roppongi, Minato-ku, Tokyo
- - CEO: Shigeru Miyamoto
- - Established: March 19, 2015
- - Business Activities: Creation of next-generation mixed-use facilities and entertainment services
For more details, visit Messe Property's website.






