TENTIAL, Creator of BAKUNE, Launches Optimal Spring/Summer Comforters for Air-Conditioned Environments on April 1
TENTIAL Co., Ltd. will launch 'BAKUNE Comforter Cool' and 'Organic Cotton' models on April 1, 2026, featuring temperature-regulating materials optimized for sleeping with air conditioning.
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- 📰 Published: April 1, 2026 at 22:00
- 🔍 Collected: April 1, 2026 at 16:47
- 🤖 AI Analyzed: April 21, 2026 at 23:01 (486h 13m after Collected)
Aiming to realize a health-forward society, TENTIAL Co., Ltd. (Location: Shinagawa-ku, Tokyo; Representative Director & CEO: Yutaro Nakanishi; hereinafter 'TENTIAL'), which operates the conditioning brand 'TENTIAL', will begin selling the 'BAKUNE Comforter Cool' and 'BAKUNE Comforter Organic Cotton', optimal for air-conditioned environments, at the TENTIAL official online store and official stores starting April 1, 2026.
TENTIAL, which continues to develop a wide range of products in the sleep domain centered on recovery wear that has exceeded a cumulative sales volume of 1.5 million sets (*1), focused on the importance of sleeping with air conditioning against the backdrop of recent extreme heat.
The newly launched summer comforter series adopts a unique design that approaches the ideal bed microclimate environment during sleep advocated by the Ministry of Health, Labour and Welfare: 'temperature 33±1°C, humidity 50±5%'. By using 'THERMO FLEX®', which incorporates a phase change material (PCM) into the batting, it is cool when it's hot and exhibits appropriate heat retention when it gets chilly from air conditioning.
The lineup features two types to choose from according to needs. The 'BAKUNE Comforter Cool' is a model that uses a contact cooling material for the outer fabric, achieving both a cool sensation that quickly releases heat upon falling asleep even on tropical nights, and the maintenance of the bed microclimate environment through its temperature regulation and dehumidification functions. The 'BAKUNE Comforter Organic Cotton' was developed based on customer feedback desiring particular materials that touch the skin. Using 100% organic cotton double gauze for the skin side, it is characterized by a natural and soft touch that gently protects the body from the cold air of the air conditioner.
Both can be completely washed in a home washing machine and also feature antibacterial, deodorizing, and anti-mite functions. Furthermore, a dedicated storage bag that can also be used as a laundry net is included, supporting summer conditioning (*2) from multiple angles.
*1 1.5 million sets: Calculated as 1 set for 2 items (tops and bottoms) (3 million units sold), cumulative sales as of August 2025.
*2 TENTIAL defines conditioning as 'adjusting all factors related to physical condition to a good state to improve life performance.'
Explanation on Air Conditioning and Sleep Environments: Professor Masaki Nishida
In recent extreme heat environments, using air conditioning including at night is essential from the perspective of preventing heatstroke, and sleeping with it on is a medically appropriate response. On the other hand, from the perspective of sleep quality, simply...
TENTIAL, which continues to develop a wide range of products in the sleep domain centered on recovery wear that has exceeded a cumulative sales volume of 1.5 million sets (*1), focused on the importance of sleeping with air conditioning against the backdrop of recent extreme heat.
The newly launched summer comforter series adopts a unique design that approaches the ideal bed microclimate environment during sleep advocated by the Ministry of Health, Labour and Welfare: 'temperature 33±1°C, humidity 50±5%'. By using 'THERMO FLEX®', which incorporates a phase change material (PCM) into the batting, it is cool when it's hot and exhibits appropriate heat retention when it gets chilly from air conditioning.
The lineup features two types to choose from according to needs. The 'BAKUNE Comforter Cool' is a model that uses a contact cooling material for the outer fabric, achieving both a cool sensation that quickly releases heat upon falling asleep even on tropical nights, and the maintenance of the bed microclimate environment through its temperature regulation and dehumidification functions. The 'BAKUNE Comforter Organic Cotton' was developed based on customer feedback desiring particular materials that touch the skin. Using 100% organic cotton double gauze for the skin side, it is characterized by a natural and soft touch that gently protects the body from the cold air of the air conditioner.
Both can be completely washed in a home washing machine and also feature antibacterial, deodorizing, and anti-mite functions. Furthermore, a dedicated storage bag that can also be used as a laundry net is included, supporting summer conditioning (*2) from multiple angles.
*1 1.5 million sets: Calculated as 1 set for 2 items (tops and bottoms) (3 million units sold), cumulative sales as of August 2025.
*2 TENTIAL defines conditioning as 'adjusting all factors related to physical condition to a good state to improve life performance.'
Explanation on Air Conditioning and Sleep Environments: Professor Masaki Nishida
In recent extreme heat environments, using air conditioning including at night is essential from the perspective of preventing heatstroke, and sleeping with it on is a medically appropriate response. On the other hand, from the perspective of sleep quality, simply...