D Clinic Tokyo Wellness Renamed to "Well Sleep Clinic Tokyo"; Osaka Clinic to Open on May 20

Well Aging Medical Corporation, which operates "D Clinic Tokyo Wellness" (Location: Chiyoda-ku, Tokyo; Director: Nao Isaka), announced on May 7, 2026, that it has changed its name to "Well Sleep Clinic Tokyo" as part of a clinic rebranding. In conjunction, "Well Sleep Clinic Osaka," operated by Suisoukai Medical Corporation, will open on Wednesday, May 20, 2026, as the second clinic under the "Well Sleep Clinic" brand.

About the Name Change

"D Clinic Tokyo Wellness" has been renamed to "Well Sleep Clinic Tokyo (WELL SLEEP CLINIC TOKYO)," with Nao Isaka appointed as director, and will continue to provide medical care under the new brand.

WELL SLEEP is a term combining WELLNESS and SLEEP.

The quality of sleep is not determined by sleep alone. Blood pressure and blood sugar control, weight management, daily activity levels, stress, nutritional status—all aspects of lifestyle and physical condition affect nighttime sleep. To achieve good quality sleep, it is crucial to maintain overall health.

Well Sleep Clinic provides comprehensive medical care, including internal medicine and allergy fields, addressing not only snoring and sleep apnea syndrome (SAS) but also lifestyle diseases such as high blood pressure, dyslipidemia, and hyperuricemia, as well as hay fever, allergies, and daily health management. We have established a system to continuously address sleep and health issues at one clinic.

"When sleep changes, every day changes." Well Sleep Clinic is committed to addressing your overall health, helping you achieve better sleep and a richer daily life with your attending physician.

Clinic Concept

From sleep and health, to a richer life that is uniquely yours. Starting with sleep and health (SLEEP × WELLNESS), we support each individual's sleep and health through insights from sleep medicine, personalized medical care by specialists, and partnerships with various fields.

Announcement of Osaka Clinic Opening

As an expansion of the rebranding, a new clinic will open in Osaka. Suisoukai Medical Corporation will be responsible for its operation, with Yasuo Watanabe appointed as director. As the second clinic of the Well Sleep Clinic brand, it will support the sleep and health of people in the Kansai region.

Clinic Name Well Sleep Clinic Osaka

Operator Suisoukai Medical Corporation

Opening Date Wednesday, May 20, 2026

Medical Departments Lifestyle Disease Clinic, Sleep Clinic (Sleep Apnea Syndrome Treatment), Allergy Department

Consultation Hours Tuesday-Friday 10:00-20:00 / Saturday-Holidays 10:00-18:00 *Closed 13:00-14:00

Location Hanshin Umeda Main Store 8F, 1-13-13 Umeda, Kita-ku, Osaka-shi, Osaka

Kansai's First Lab-Type Real Store "Brain Sleep Hanshin Umeda Main Store" Adjacent

Adjacent to the Osaka clinic, "Brain Sleep Hanshin Umeda Main Store," Kansai's first lab-type real store operated by Brain Sleep Inc., will open on the same day.

In addition to experiencing and purchasing all Brain Sleep products, it offers four experiential original services tailored to individual sleep needs. A new hub in Umeda will be born, integrating medical care and sleep products to address each person's sleep.

Well Sleep Clinic Osaka and Brain Sleep Hanshin Umeda Main Store will support the sleep and health of people in the Kansai region, with Well Sleep Clinic Osaka from a medical perspective and Brain Sleep Hanshin Umeda Main Store from a wellness perspective.

[Brain Sleep Inc.]

Company Name: Brain Sleep Inc. Established: May 2019 Location: JP Tower 26F, 2-7-2 Marunouchi, Chiyoda-ku, Tokyo Representative Director: Atsushi Hirota

[Tokyo Clinic Overview]

Clinic Name: Well Sleep Clinic Tokyo Operator: Well Aging Medical Corporation Location: Pacific Century Place Marunouchi 10F, 1-11-1 Marunouchi, Chiyoda-ku, Tokyo Director: Nao Isaka TEL: 03-6665-0502 Clinic Website: https://www.wellsleepclinic.or.jp/tokyo/

[Osaka Clinic Overview]

Clinic Name: Well Sleep Clinic Osaka Operator: Suisoukai Medical Corporation Location: Hanshin Umeda Main Store 8F, 1-13-13 Umeda, Kita-ku, Osaka-shi, Osaka Director: Yasuo Watanabe Opening Date: Wednesday, May 20, 2026 Clinic Website: https://www.wellsleepclinic.or.jp/osaka/

[Inquiries Regarding This Matter]

Well Sleep Clinic Tokyo, Well Aging Medical Corporation Contact Person: Fukazawa TEL: 03-