The Ultimate Sleeping Comfort You Feel the Moment You Touch It: All About Pillowcases with Unprecedented High-Quality Material Selection!!
HappySleep LLC announces 'Gumi Pillow Premium' with a unique pillow and a high-quality seal-woven cotton pillowcase, aiming to improve sleep quality in Japan.
📋 Article Processing Timeline
- 📰 Published: April 1, 2026 at 16:30
- 🔍 Collected: April 1, 2026 at 08:05
- 🤖 AI Analyzed: April 16, 2026 at 16:09 (368h 3m after Collected)
Starting from April, when new lifestyles begin, let's "be happy with good sleep"!!
In recent years, Japan's average sleep duration is the shortest among major countries at 7 hours and 42 minutes, and its low labor productivity is also being highlighted. We are determined to change Japan through sleep.
Our company aims to "break away from the bedding industry" and will promote collaborations with a wide range of industries such as food, health, beauty, sports, and nursing care.
The combination of the "Gumi Pillow," structured to firmly support the head and neck, and the premium cover is outstanding.
### 100% Cotton Seal Weave Material Invites You to a Good Night's Sleep...
You don't need a custom-measured pillow. Prioritize your preferences: "Do you like it firm or soft?" "High or low?" We believe that the comfort of the part that supports your head and neck (cervical spine) changes your sleep.
In particular, the pillowcase that directly touches your skin is actually very important for sleep. While pile material is common for cotton, this premium cover features a special technique called seal weave, which has a raised nap specification, providing an excellent fit to the skin. It is resistant to hardening even after repeated washing, allowing you to use it comfortably for a long time.
Sleeping on your back is recommended, but if you find it too low when sleeping on your side, we recommend adjusting the height by placing a bath towel or similar under the pillow.
We focused on the shape of the Gumi pillow for sleeping posture. As a result, we designed it with an initial indentation for the head and neck. Design registered (Registration No. 1732543).
The uneven surface structure ensures breathability.
This is an exquisite pillow, meticulously researched and developed, leveraging 36 years of experience working for a major bedding manufacturer.
Excellent shock resistance, so it's fine even when rolled up, and contains bamboo charcoal.
It is also used in beauty salons nationwide.
Woven with traditional techniques only possible in the Koyaguchi region of Wakayama Prefecture.
Cotton seal weave, only possible in the Koyaguchi region of Wakayama Prefecture.
We finish the product with a material that is not yet widely known, offering a sensational feel.
Made of 100% soft cotton, it is gentle on hair and skin.
Adjusting the height when sleeping on your side will further enhance comfort.
## Product Information
- Product Name: ■Sleeping Beauty® Pillow Series "Gumi Pillow Premium"
- Specifications: ■Size: Width 31cm × Length 60cm × Thickness 7cm (lower part approx. 4cm)
- Inner Cover: 100% Polyester
(Surface mesh material, back knit material) Sewn-in type
- Exclusive Pillowcase: Double-sided seal weave 100% cotton, unbleached, zipper type, washable
- Core Material: Gumi-touch urethane foam (with bamboo charcoal), black, not washable
- Weight: 1,000g ± 50g
- Case: Non-woven fabric bag with brand name handle
- Country of Origin: Urethane foam core made in China
: Exclusive pillowcase made in Japan (Wakayama Prefecture Koyaguchi production, carefully selected seal weave)
- Sales Price: 15,400 yen (tax included)
- General Sales Start Date: From 10:00 AM on April 8, Reiwa 8 (2026)
Distributor: oneA Co., Ltd. TEL 06-6962-7771
Product Page URL: https://item.rakuten.co.jp/swanswan/36/
Manufacturing Planning: HappySleep LLC
Representative: Teruo Nagai
Location: Metro, 7th Floor, Matsuyamachi MT Building, 2-6-14 Ando-ji-machi, Chuo-ku, Osaka-shi, Osaka 542-0061
Phone: 090-9218-5747
Established: December 12, 2022
HP: https://happysleep.co.jp
*General sales scheduled to start on Rakuten from 10:00 AM on Wednesday, April 8, 2026.
In recent years, Japan's average sleep duration is the shortest among major countries at 7 hours and 42 minutes, and its low labor productivity is also being highlighted. We are determined to change Japan through sleep.
Our company aims to "break away from the bedding industry" and will promote collaborations with a wide range of industries such as food, health, beauty, sports, and nursing care.
The combination of the "Gumi Pillow," structured to firmly support the head and neck, and the premium cover is outstanding.
### 100% Cotton Seal Weave Material Invites You to a Good Night's Sleep...
You don't need a custom-measured pillow. Prioritize your preferences: "Do you like it firm or soft?" "High or low?" We believe that the comfort of the part that supports your head and neck (cervical spine) changes your sleep.
In particular, the pillowcase that directly touches your skin is actually very important for sleep. While pile material is common for cotton, this premium cover features a special technique called seal weave, which has a raised nap specification, providing an excellent fit to the skin. It is resistant to hardening even after repeated washing, allowing you to use it comfortably for a long time.
Sleeping on your back is recommended, but if you find it too low when sleeping on your side, we recommend adjusting the height by placing a bath towel or similar under the pillow.
We focused on the shape of the Gumi pillow for sleeping posture. As a result, we designed it with an initial indentation for the head and neck. Design registered (Registration No. 1732543).
The uneven surface structure ensures breathability.
This is an exquisite pillow, meticulously researched and developed, leveraging 36 years of experience working for a major bedding manufacturer.
Excellent shock resistance, so it's fine even when rolled up, and contains bamboo charcoal.
It is also used in beauty salons nationwide.
Woven with traditional techniques only possible in the Koyaguchi region of Wakayama Prefecture.
Cotton seal weave, only possible in the Koyaguchi region of Wakayama Prefecture.
We finish the product with a material that is not yet widely known, offering a sensational feel.
Made of 100% soft cotton, it is gentle on hair and skin.
Adjusting the height when sleeping on your side will further enhance comfort.
## Product Information
- Product Name: ■Sleeping Beauty® Pillow Series "Gumi Pillow Premium"
- Specifications: ■Size: Width 31cm × Length 60cm × Thickness 7cm (lower part approx. 4cm)
- Inner Cover: 100% Polyester
(Surface mesh material, back knit material) Sewn-in type
- Exclusive Pillowcase: Double-sided seal weave 100% cotton, unbleached, zipper type, washable
- Core Material: Gumi-touch urethane foam (with bamboo charcoal), black, not washable
- Weight: 1,000g ± 50g
- Case: Non-woven fabric bag with brand name handle
- Country of Origin: Urethane foam core made in China
: Exclusive pillowcase made in Japan (Wakayama Prefecture Koyaguchi production, carefully selected seal weave)
- Sales Price: 15,400 yen (tax included)
- General Sales Start Date: From 10:00 AM on April 8, Reiwa 8 (2026)
Distributor: oneA Co., Ltd. TEL 06-6962-7771
Product Page URL: https://item.rakuten.co.jp/swanswan/36/
Manufacturing Planning: HappySleep LLC
Representative: Teruo Nagai
Location: Metro, 7th Floor, Matsuyamachi MT Building, 2-6-14 Ando-ji-machi, Chuo-ku, Osaka-shi, Osaka 542-0061
Phone: 090-9218-5747
Established: December 12, 2022
HP: https://happysleep.co.jp
*General sales scheduled to start on Rakuten from 10:00 AM on Wednesday, April 8, 2026.
FAQ
What are the main features of the "Gumi Pillow Premium"?
It combines a 100% cotton pillowcase with a pleasant texture, made using the traditional "seal weave" technique from Wakayama's Koyaguchi region, and the patented "Gumi Pillow" designed to firmly support the head and neck.
When will general sales begin?
General sales are scheduled to begin on Rakuten from 10:00 AM on Wednesday, April 8, 2026.
Why is the company aiming to "break away from the bedding industry"?
To transform Japan through sleep, addressing the issues of short average sleep duration and low labor productivity. This is achieved by offering comprehensive sleep solutions through collaborations with various industries such as food, health, beauty, sports, and nursing care.