Gunze Co., Ltd. 97% of people feel uncomfortable sleeping in the summer and have poor quality sleep! The key to a comfortable sleep is “selecting the right nightwear” 3 recommended items from Gunze to support your sleep environment!

[Gunze Limited] 97% of people feel uncomfortable sleeping in the summer and that their sleep quality is poor! The key to a comfortable sleep is “selecting the right nightwear.” Here are 3 recommended items from Gunze that will help you sleep better! ​ Gunze Limited Press release: July 23, 2025 97% of people feel uncomfortable sleeping in the summer and that their sleep quality is poor! The key to a comfortable sleep is “selecting the right nightwear” 3 recommended items from Gunze to support your sleep environment! It’s getting quite muggy not only during the day, but also at night. It’s said that the ideal temperature for a bedroom on a summer night is 25-26°C, but the temperature is hard to drop even at night, and you may get heatstroke while sleeping. In order to create a comfortable sleeping environment, it is important to “choose the right nightwear for you.” This time, we will investigate summer sleep problems and solutions, and thoroughly explain the secrets to a good night’s sleep. In addition, we will focus on the role of “nightwear,” and introduce the key points for choosing a comfortable sleep, as well as recommended products from Gunze, which has a sleep improvement instructor.
https://prcdn.freetls.fastly.net/release_image/9311/31/9311-31-808dc0cd353fbd88ab409daf36548b6d-712×479.jpg Survey on summer sleep worries Using Gunze’s Formula X, we conducted a survey on summer sleep. It turned out that 97% of people feel that “it is hard to sleep in the summer and the quality of sleep is poor.” Surprisingly, 55% of people use the air conditioner all night, and 21% set it on a timer. In particular, 58% of respondents said it was “too hot to sleep,” and 24% said “my body gets sticky from night sweats.” Half of the respondents (53%) sleep in T-shirts or tracksuits, but when asked if they would like to try “pajamas or T-shirts that will help you sleep soundly on summer nights,” 68% said they would like to try them, and 25% said they were interested, suggesting that a total of 93% of people are not satisfied with their current sleep. Survey period: July 10th to July 11th, 2025 Survey subjects: 116,009 followers of @gunze_jp official X as of July 11th Survey method: Official X Survey function
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https://prcdn.freetls.fastly.net/release_image/9311/31/9311-31-badc2cfa1a86057d8c4a60068cd24ae9-2962×1983.jpg Key points for good quality sleep Hot summer nights can make it hard to fall asleep or wake up in the middle of the night, which can affect the quality of your sleep. Here are five easy-to-follow tips for better sleep. 1. Relax before you go to sleep Even on hot days, try to take a bath instead of just a shower. Taking a bath relaxes your whole body, activates your parasympathetic nervous system, and puts your body into a relaxed state. Also, if your body temperature rises through bathing, then when you sweat, your body temperature naturally drops, making it easier to fall asleep. 2. Drink water before going to bed While you sleep, your body releases heat by sweating, lowering your core temperature. This mechanism promotes good quality sleep, but if your body is not hydrated enough, your body temperature regulation through sweating will not work as well, and your sleep quality will decrease. Therefore, make sure to drink a glass of water before going to bed. 3. Prevent waking up in the middle of the night Waking up in the middle of the night is called “waking up in the middle of the night.” It is said that people turn over in their sleep about 20 to 30 times a night, so it is important to turn over as smoothly as possible to prevent waking up in the middle of the night. 4. Decide on a routine before falling asleep The act of getting your body and mind into a sleep state by making a certain action a habit before going to sleep every day is called a sleep ceremony, and it is said that more than 80% of people naturally do this. This promotes the secretion of the sleep-inducing hormone “melatonin,” helping you fall asleep more easily. ➄ Change into “clothes for sleeping” In fact, it is said that wearing nightwear itself has the effect of suggesting sleep. Instead of sleeping in your loungewear, changing into “clothes for sleeping” and switching your brain into sleep mode will help you relax and get to bed. How to choose nightwear ・Design・Specifications It is important that your nightwear is designed and made to be loose enough to allow you to turn over easily. Clothing that is not designed for sleeping will be narrow, tight around the waist, and leave areas of your body feeling cramped. Tight or cramped areas can also easily trap sweat. ・Material Soft and comfortable materials will help you sleep better. Try to feel the texture and softness of the material and choose a material that feels comfortable against your skin. Especially in the summer… It is said that we sweat about the equivalent of a plastic bottle when we sleep at night. For this reason, we recommend nightwear made of a material that is highly moisture-wicking and quick-drying so that you don’t wake up from the discomfort of “sticky sweat” while you sleep. At Gunze, we provide clothing trivia and tips that are useful for everyday life through Kimikoko Plus. We also have articles on measures to ensure a good night’s sleep and how to choose pajamas, so be sure to check them out. Recommended for when it’s too hot to sleep! 7 ways to sleep well when used with an air conditioner | Comfortable Plus | GUNZE Recommended nightwear to support your sleep environment For those who like to sleep in T-shirts, we recommend the Sleeping T-shirt
https://prcdn.freetls.fastly.net/release_image/9311/31/9311-31-fe601af8397e6b954a62d1a200e05d4e-1040×520.jpg Ladies ■【KAIMIN NAVI】Sleeping T-shirt, drop shoulder type, single item, 5/8 sleeve Size: M, L, LL Type: White, navy blue, light gray, charcoal gray Price: ¥3,960 (tax included) Men’s ■【KAIMIN
NAVI】Sleeping T-shirt Drop shoulder type Single item Short sleeves Sizes: M, L, LL Types: White, navy blue, light gray, charcoal gray Price: ¥3,960 (tax included) The main body is 100% cotton, and the back is made of mesh Outlast®, a temperature-regulating material developed for NASA. It is light, moisture-wicking, and breathable, making it suitable for the hot summer season. The drop shoulder design lowers the shoulder line, widens the area from the back to the shoulders, and provides room to reduce the feeling of tightness when you bend your back or twist your body. It also makes it easier to raise and lower your arms. Patent applied for sleeping design KAIMIN NAVI 100% cotton willow pajamas
https://prcdn.freetls.fastly.net/release_image/9311/31/9311-31-c4e495db75ed3174601c169813e5c06f-2546×1283.jpg Ladies ■ [KAIMIN NAVI] 100% cotton willow pajamas Long sleeves and long pants Sizes: M, L, LL Types: Navy blue, pink Price: ¥7,700 (tax included) Men’s ■【KAIMIN NAVI】100% cotton willow pajamas long sleeves long pants Size: M, L, LL Type: Navy blue, charcoal gray Price: ¥7,700 (tax included) This product is designed with a patent pending turning-over design to support a good sleeping environment and make it easier to turn over. The wide armholes make it easier to turn over. The waist adjustment elastic allows you to adjust the tightness of the waist. The material is 100% cotton willow material that feels good on the skin. Willow is characterized by the unevenness called “shibo” that looks like waves on the surface. Thanks to this shibo, the contact area with the skin is reduced, resulting in a smooth feel. Sweep away night sweats! Swish away! Oops! Acedron pajamas Image
URL: https://prcdn.freetls.fastly.net/release_image/9311/31/9311-31-c4160e8597d243918480eeb67467ea9b-2259×1131.jpg Ladies ■【Acedron】Modified rayon pajamas, short-sleeved 7/8 length pants Sizes: S, M, L, LL Types: Navy blue, blue, pink Price: ¥4,400-4,950 (tax included) Men’s ■【Acedron】Modified rayon pajamas, short-sleeved 7/8 length pants Sizes: S, M, L, LL Types: Gray, Blue, Navy Blue Price: ¥4,400-¥5,500 (tax included) These pajamas are equipped with Gunze’s top-class “sweat-relief” technology, which eliminates the discomfort caused by sweat, such as stickiness and dampness. The material used is double gauze material with a gentle texture. Double gauze is a woven fabric that is soft to the touch and is generally said to have excellent moisture absorption and
breathability. In addition, the inside of the fabric is woven with acedoron, which has high sweat absorption, quick drying, and moisture absorption/release properties. ※[Modified rayon]: Rayon with enhanced moisture absorption and release performance by firmly bonding functional substances at the molecular level.
https://prcdn.freetls.fastly.net/release_image/9311/31/9311-31-6411752163029fc4c255349e201fd98b-1480×680.jpg Gunze’s official online store [Gunze Store] is holding a summer SALE. Don’t miss this opportunity! https://www.gunze.jp/store/e/esummersale/ automatically, so please do not reply.