[GOKUMIN] Is Indoor Air Up to 5 Times More Polluted Than Outdoor Air? ~ Providing the "NERU BREEZE" Air Purifier, Designed for Better Sleep, at a Child-Rearing Support Event.

KURUKURU Co., Ltd. (Head Office: GINZA SIX 13F, 6-10-1 Ginza, Chuo-ku, Tokyo; President & CEO: Yasuhiro Sekizawa), which operates the comprehensive bedding brand "GOKUMIN," provided its "NERU BREEZE" air purifier, designed with better sleep in mind, as a prize for the "Shinshu Child-Rearing Support Festival 2026" held on June 6, 2026 (Sat.) at the Nagano City Lifelong Learning Center. This event, held for the fourth time this year, welcomed 932 families, approximately 3,000 individuals from child-rearing households. At the venue, NERU BREEZE was offered as a prize in a raffle, and original postcards introducing the product and brand were distributed, providing an opportunity for attendees to reconsider their family's sleep environment from the perspective of "air" in the bedroom.

Event Overview

Event Name: Shinshu Child-Rearing Support Festival 2026

Date & Time: June 6, 2026 (Sat.) 10:00 AM - 3:00 PM

Venue: Nagano City Lifelong Learning Center (1271-3 Tsuruga, Nagano City, Nagano Prefecture, TOiGO WEST 3F-4F)

Organizer: Sunmedix Co., Ltd.

Number of Attendees: 932 families, approx. 3,000 people

Contents: Kids' Sports Day, Children's Photo Session with a Professional Photographer, Picture Book Readings by SBC Announcers, Stage Shows, Garapon Raffle & Prize Giveaways, Sponsor Booths, etc.

Official Website: https://kosodatefes.sunmedix.jp

Background of Product Sponsorship

[The Concept of "Optimizing the Sleep Environment Through Air" for Child-Rearing Households]

Indoor air is said to be 2 to 5 times more polluted than outdoor air (*). Among indoor spaces, the bedroom is one where we spend the most time, yet its air environment is often overlooked. With the belief that "sleeping is the beginning of a happy day," GOKUMIN has expanded its sleep expertise, cultivated through bedding manufacturing, to encompass air environments, leading to the development of the "NERU BREEZE" air purifier focused on sleep environments.

For child-rearing households, family sleep is the source of daily energy. A comfortable sleep environment is essential for parents juggling housework, childcare, and work, as well as for children growing up healthy. In support of the organizer's desire to "support child-rearing in the community," we decided to provide products for the event's prize giveaway, thinking we could contribute to family sleep through the lens of bedroom air.

* Reference: U.S. Environmental Protection Agency (U.S. EPA) "The Inside Story: A Guide to Indoor Air Quality"

Scenes from the Event Day

[To the Winning Child-Rearing Households as Prizes for the Giveaway]

The event was bustling with 932 families, approximately 3,000 child-rearing households, and featured prize giveaways including a Garapon raffle. NERU BREEZE was offered as one of the prizes, providing a valuable opportunity for winners to experience the product in their daily lives, something not easily done in a store setting.

[Proposing "Bedding for the Family" Through Postcards]

In addition, original postcards were available and distributed at the venue, allowing attendees to take home the brand's philosophy and product information. The 200 postcards prepared were highly sought after, with only about 10 remaining by the end of the event, indicating a high level of interest in sleep and air environments among child-rearing households. Many also visited the GOKUMIN official website prompted by the postcards.

* 99.9% removal of harmful substances refers to measurement results from a third-party testing institution for the filter material alone. Particle collection efficiency of 99.97% for 0.3μm particles (NaCl) (Test conditions: using TSI8130 / airflow 32L/min / test area 100cm2). These figures are under specific test conditions and do not represent effectiveness in actual usage environments or the removal/reduction of all bacteria and viruses.

Sponsored Product

NERU BREEZE

[Transform Your Room's Air with One Small Unit] Equipped with a high-performance 4-layer filter (pre-filter + high-performance decomposition filter + HEPA H13 + activated carbon) that handles pollen, PM2.5, viruses, and odors. It easily makes everyday spaces like bedrooms, children's rooms, and studies more comfortable. It also features a convenient replacement indicator that notifies you approximately every 6 months (approx. 2,200 hours) and a one-touch replacement mechanism.

Future Initiatives and Policy

As a bedding brand, GOKUMIN will continue to focus on providing "supreme sleep" and will go beyond products to support the creation of sleep environments for families. Through sponsorships and prize donations for community-based events like this one, we will cherish opportunities for consumers to directly experience the brand's philosophy and deliver products and information that make people feel "they can't go wrong with choosing us." We will continue to expand options for better sleep, so that every day for everyone, including child-rearing households, begins with a comfortable awakening.

Cumulative Series Sales Exceed 2 Million Units. What is "GOKUMIN"?

Because sleeping is the beginning of a happy day.

"GOKUMIN," a bedding brand originating in Japan, offers high-quality bedding at affordable prices. Fortunately, we have received numerous awards, including the "Amazon.co.jp Seller Award 2023 Grand Prize" and achieving the top position in the bedding brand category for two consecutive years. We are highly regarded by many people. To realize healthy and fulfilling daily lives as advocated by SDGs, we will continue to pursue products that people will say, "they can't go wrong with choosing us."

Official Website: https://gokumin.co.jp/

Sources

*1 U.S. Environmental Protection Agency (U.S. EPA) "The Inside Story: A Guide to Indoor Air Quality"

https://www.epa.gov/indoor-air-quality-iaq/inside-story-guide-indoor-air-quality

*2 99.9% removal of harmful substances refers to measurement results from a third-party testing institution for the filter material alone. Particle collection efficiency of 99.97% for 0.3μm particles (NaCl) (Test conditions: using TSI8130 / airflow 32L/min / test area 100cm2). These figures are under specific test conditions and do not represent effectiveness in actual usage environments or the removal/reduction of all bacteria and viruses.

Related Press Releases

● [GOKUMIN] Bedding Manufacturer and Audio Brand Offer "Sleep with Sound" Experience to Approx. 500 People at Azabudai Hills

https://prtimes.jp/main/html/rd/p/000000325.000036491.html

● [GOKUMIN] "Fall Asleep Experience" with Comfortable Pillow x Head Spa Offered at "Shiodome Spring Beer Festa 2026" | "I feel like I could just fall asleep here" comments abound

https://prtimes.jp/main/html/rd/p/000000349.000036491.html

● [GOKUMIN] Birth of "NERU BREEZE," a Sleep-Conscious Air Purifier that "Changes Sleep from Bedroom Air"

https://prtimes.jp/main/html/rd/p/000000282.000036491.html

GOKUMIN Official Social Media

Instagram: https://www.instagram.com/gokumin_official/

X: https://x.com/gokumin888

LINE: https://s.lmes.jp/landing-qr/2004248957-drqYJvzN?uLand=7KYQLJ

Company Profile

KURUKURU Co., Ltd.

A company that creates and delivers with heart. "People create. For people, we create."

Company Name: KURUKURU Co., Ltd. President & CEO: Yasuhiro Sekizawa Location: 〒104-0061 GINZA SIX 13F, 6-10-1 Ginza, Chuo-ku, Tokyo Established: September 2015 Capital: 50 million yen Official HP: https://www.kurukuru.co.jp/