"We want to create the world's most sleepable pajamas." Pajama store IZUMM announces its one dream for #AprilDream
"Sleeping is living." Pajama store IZUMM continues its thorough pursuit of the best materials, sewing, and comfort, aiming to create the world's most sleepable pajamas. To reduce sleepless nights, we pour everything we can into each and every piece.
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- 📰 Published: April 1, 2026 at 23:30
Original pajama brand "pajamaya IZUMM" (https://www.pajamaya.com/), operated by Flex Inc. (CEO: Izumi Kumasaka, HQ: Sagamihara, Kanagawa), will continue to take on the challenge of "creating the world's most sleepable pajamas."
Our company supports April Dream, which seeks to make April 1st a day for sharing dreams. This press release is the dream of Flex Inc.
## We want to eliminate sleepless nights
A night when you get into bed but just can't seem to settle down. A night when you suddenly wake up because it's too hot or too cold. A night when you greet the morning again, thinking, "If only I could have slept more."
We want to reduce even a little of that "sleepless time."
With that in mind, pajamaya IZUMM has continued to make pajamas with a focus on materials. For over 20 years since our founding. Without being swayed by trends, we have single-mindedly focused on "sleep."
## "Sleeping is living."
The beginning of a day starts from "sleep."
No matter how busy the day, no matter how hard you worked the night, if your sleep is not in order, you cannot perform at your best the next day. It's not just about performance. Peace of mind, physical recovery—everything is connected to "how well you slept."
That is why pajamaya IZUMM wants to spread a culture that values sleep more, in Japan and around the world.
## We became convinced of the power of pajamas
"How can one sleep comfortably?"
Carrying this question, we have researched sleep from every angle of pajamas, including materials, sewing, silhouette, and texture.
In the process, we also realized that sleep involves all aspects of "clothing, food, and shelter." Diet, how you spend your day, the bedroom environment—all are important, and you cannot achieve truly good sleep with just one of them.
As we broadened our horizons to create a place where people can experience and learn about sleep to improve their 'clothing, food, and shelter' for a better tomorrow, we realized something anew.
**That "pajamas have the power to change sleep."**
A garment you spend about a third of your day with, something you wear every single night, 365 days a year. Yet, it's something anyone can adopt and continue effortlessly just by changing into it.
That one piece of clothing might change the quality of sleep, the condition in the morning, and by extension, a person's entire day.
That is why we believe in this power and want to deliver it to more people, including those who do not yet have the option of "wearing pajamas for sleep."
## Aiming for the world's most sleepable pajamas
pajamaya IZUMM has only one dream. **To create the world's most sleepable pajamas.**
To achieve this, we are pursuing the following kind of comfort:
- Softness that makes you feel relieved the moment it touches your skin
- A design that follows your movements and doesn't hinder turning over in bed
- All-night temperature regulation that is neither too hot nor too cold
- Comfort that makes you feel stress-free all night long
When all these are combined, it becomes a garment that allows you to feel "I fell asleep before I knew it," relying on your own ability to sleep rather than on medicine or tools. Believing this, we continue our trial and error today.
## Because we are still on the way
To be honest, we don't think we have yet created the "world's best pajamas."
The ideal is always slightly ahead of where we are now.
Even so, with each garment, we review the materials, adjust the seams, and polish the comfort, gradually getting closer to our ideal. With the careful craftsmanship possible only for a small manufacturer, something not born in large factories.
## That one piece will change tomorrow
Pajamas are not just loungewear.
The moment you put them on at the end of the day, a switch flips, guiding you toward sleep. That feeling changes the time it takes to fall asleep, the depth of sleep, the way you wake up, and thus, your entire day.
This is what we believe.
**Pajamas can change your sleep.**
In the realm of "comfort" that supports sleep quality, we will continue to challenge ourselves to create the world's most sleepable pajamas.
### pajamaya IZUMM
**A brand that nurtures sleep with a gentle touch on the skin**
**Material-focused pajamas that make you look forward to saying "good night"**
Sleep is the closest happiness.
pajamaya IZUMM carefully envelops your daily sleep time with materials that stay close to your skin.
pajamaya IZUMM ONLINE STORE ( https://www.pajamaya.com/ )
Flex Inc.
CEO: Izumi Kumasaka
Headquarters: 4-16-13 Hashimoto, Midori-ku, Sagamihara-shi, Kanagawa-ken 252-0143
TEL: 042-703-8481
Related Links
pajamaya IZUMM ONLINE STORE: https://www.pajamaya.com/
Flex Inc.: https://www.flex.jp.net/
Our shop is operated solely online. We strive every day to make you feel as if you are shopping in person, with each staff member wholeheartedly responding to customer requests. Furthermore, 70% of the orders we receive at pajamaya IZUMM are gifts for loved ones. We build our shop imagining what kind of feelings you want to convey. We hope to communicate the careful, manual work of our staff, from stocking to shipping.
Our company supports April Dream, which seeks to make April 1st a day for sharing dreams. This press release is the dream of Flex Inc.
## We want to eliminate sleepless nights
A night when you get into bed but just can't seem to settle down. A night when you suddenly wake up because it's too hot or too cold. A night when you greet the morning again, thinking, "If only I could have slept more."
We want to reduce even a little of that "sleepless time."
With that in mind, pajamaya IZUMM has continued to make pajamas with a focus on materials. For over 20 years since our founding. Without being swayed by trends, we have single-mindedly focused on "sleep."
## "Sleeping is living."
The beginning of a day starts from "sleep."
No matter how busy the day, no matter how hard you worked the night, if your sleep is not in order, you cannot perform at your best the next day. It's not just about performance. Peace of mind, physical recovery—everything is connected to "how well you slept."
That is why pajamaya IZUMM wants to spread a culture that values sleep more, in Japan and around the world.
## We became convinced of the power of pajamas
"How can one sleep comfortably?"
Carrying this question, we have researched sleep from every angle of pajamas, including materials, sewing, silhouette, and texture.
In the process, we also realized that sleep involves all aspects of "clothing, food, and shelter." Diet, how you spend your day, the bedroom environment—all are important, and you cannot achieve truly good sleep with just one of them.
As we broadened our horizons to create a place where people can experience and learn about sleep to improve their 'clothing, food, and shelter' for a better tomorrow, we realized something anew.
**That "pajamas have the power to change sleep."**
A garment you spend about a third of your day with, something you wear every single night, 365 days a year. Yet, it's something anyone can adopt and continue effortlessly just by changing into it.
That one piece of clothing might change the quality of sleep, the condition in the morning, and by extension, a person's entire day.
That is why we believe in this power and want to deliver it to more people, including those who do not yet have the option of "wearing pajamas for sleep."
## Aiming for the world's most sleepable pajamas
pajamaya IZUMM has only one dream. **To create the world's most sleepable pajamas.**
To achieve this, we are pursuing the following kind of comfort:
- Softness that makes you feel relieved the moment it touches your skin
- A design that follows your movements and doesn't hinder turning over in bed
- All-night temperature regulation that is neither too hot nor too cold
- Comfort that makes you feel stress-free all night long
When all these are combined, it becomes a garment that allows you to feel "I fell asleep before I knew it," relying on your own ability to sleep rather than on medicine or tools. Believing this, we continue our trial and error today.
## Because we are still on the way
To be honest, we don't think we have yet created the "world's best pajamas."
The ideal is always slightly ahead of where we are now.
Even so, with each garment, we review the materials, adjust the seams, and polish the comfort, gradually getting closer to our ideal. With the careful craftsmanship possible only for a small manufacturer, something not born in large factories.
## That one piece will change tomorrow
Pajamas are not just loungewear.
The moment you put them on at the end of the day, a switch flips, guiding you toward sleep. That feeling changes the time it takes to fall asleep, the depth of sleep, the way you wake up, and thus, your entire day.
This is what we believe.
**Pajamas can change your sleep.**
In the realm of "comfort" that supports sleep quality, we will continue to challenge ourselves to create the world's most sleepable pajamas.
### pajamaya IZUMM
**A brand that nurtures sleep with a gentle touch on the skin**
**Material-focused pajamas that make you look forward to saying "good night"**
Sleep is the closest happiness.
pajamaya IZUMM carefully envelops your daily sleep time with materials that stay close to your skin.
pajamaya IZUMM ONLINE STORE ( https://www.pajamaya.com/ )
Flex Inc.
CEO: Izumi Kumasaka
Headquarters: 4-16-13 Hashimoto, Midori-ku, Sagamihara-shi, Kanagawa-ken 252-0143
TEL: 042-703-8481
Related Links
pajamaya IZUMM ONLINE STORE: https://www.pajamaya.com/
Flex Inc.: https://www.flex.jp.net/
Our shop is operated solely online. We strive every day to make you feel as if you are shopping in person, with each staff member wholeheartedly responding to customer requests. Furthermore, 70% of the orders we receive at pajamaya IZUMM are gifts for loved ones. We build our shop imagining what kind of feelings you want to convey. We hope to communicate the careful, manual work of our staff, from stocking to shipping.
FAQ
What is pajamaya IZUMM's 'April Dream'?
It's their dream 'to create the world's most sleepable pajamas.' They aim to improve people's sleep quality by obsessively focusing on materials, sewing, and comfort.
Why does this company focus so much on pajamas?
They believe that pajamas, worn daily, are a crucial element that affects sleep quality. They see it as an effortless form of sleep care that anyone can adopt just by changing clothes.
What kind of company runs this brand?
It is operated by Flex Inc., located in Sagamihara, Kanagawa. The company has specialized in making pajamas for over 20 years.