[Significant difference in sleep efficiency and sleep onset] All-night sleep measurement of Nemureca Pajamas conducted | Improvement in sleep onset and sleep maintenance confirmed
P2C Studio and MARINESS jointly confirmed through research that Nemureca Pajamas scientifically improve sleep efficiency. All-night sleep measurements showed statistically significant differences in sleep onset and maintenance, suggesting a contribution to daily sleep quality improvement.
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- 📰 Published: April 27, 2026 at 20:30
- 🔍 Collected: April 27, 2026 at 12:01
- 🤖 AI Analyzed: April 28, 2026 at 07:40 (19h 38m after Collected)
P2C Studio Inc. (Headquarters: Minato-ku, Tokyo; Representative Director and President: Shinji Senoo) and MARINESS Inc., a wellness brand "mariness" jointly developed by them, have confirmed through the latest joint research that wearing "Nemureca Pajamas" scientifically improves sleep efficiency.
The "all-night sleep measurement" conducted jointly with Sleep LIVE Inc. and Sleep Research Labo 睡眠科学研究所 showed a statistically significant difference (p<0.05) in "sleep onset" and "sleep maintenance" when wearing this product.
In recent years, as interest in the "quality" of sleep has grown, this research result suggests that rethinking the daily habit of wearing pajamas is an effective means to achieve "stable sleep" with smooth sleep onset and fewer awakenings during sleep.
*p<0.05 is a common standard for determining statistical significance.
This study was conducted on 10 healthy adult women (35-65 years old), and the design suppressed the influence of individual differences by comparing within the same subjects.
Sleep status was measured by combining objective evaluation using actigraphs and sleep depth measuring devices, and subjective evaluation using the OSA Sleep Sensation Survey.
■ About Nemureca Pajamas Performance
Nemureca Pajamas
・Design that supports body temperature regulation
・Stress-free comfort
・Uses proprietary material "NEMUREC Core®︎"
is a wellness item focusing on the daily sleep environment.
Through Nemureca Pajamas, we propose creating an environment for easier and more stable sleep.
Details of Nemureca Pajamas here: https://x.gd/9XXrP
■ Research Results
《Sleep Efficiency》
As a result of objectively measuring sleep status, a statistically significant difference in sleep efficiency was confirmed when wearing Nemureca Pajamas compared to general pajamas. Sleep efficiency when wearing Nemureca Pajamas was 85.27%, while general pajamas was 83.26%, a result approximately 2 points higher (p<0.05).
《Sleep Onset and Sleep Maintenance》
In subjective evaluation, a statistically significant difference was also confirmed in indicators related to sleep onset and sleep maintenance when wearing Nemureca Pajamas compared to general pajamas. The scores were 49.13 and 41.76 respectively, showing a difference of 7.37 points (p<0.05).
From the results of this study, Nemureca Pajamas showed changes such as:
・Easier to fall asleep
・Less awakening during sleep
・Increased state of actual sleep
This suggests that Nemureca Pajamas may influence aspects related to sleep quality, such as "ease of falling asleep" and "sleep stability," not just sleep duration.
■ What is mariness
mariness is a wellness brand with the concept "Through health, love yourself more." It develops items that naturally blend into daily life from three health axes: "exercise," "diet," and "rest." It aims to fit health opportunities into daily routines and continuously provide triggers for healthy habits. Even without special time or preparation, by "replacing daily life with mariness," it effortlessly supports a step towards a healthy life. The #1 popular product, "Mariness Protein," has won Rakuten "Shop of the Year" for two consecutive years. Cumulative sales across the brand have exceeded 1.8 million units, gathering widespread empathy.
Official Online Store: https://mariness.jp/
Official Instagram: https://www.instagram.com/mariness_official/
Official X: https://x.com/mariness_jp
YouTube Channel "Marina Takewaki": https://www.youtube.com/c/MarinaTakewaki
■ About P2C Studio Inc.
P2C Studio is a professional company that realizes "brand and product creation starting from people" in the P2C (Person to Consumer, PtoC) domain. It strategically develops diverse product creation such as brands, goods, licenses, and digital content, and integrated marketing communication and EC/store sales that maximize creators' information dissemination power.
Established: June 2021
Representatives: Shinji Senoo, President & CEO / Tomoki Omichi, Vice President
Location: Midtown Tower 28F, 9-7-1 Akasaka, Minato-ku, Tokyo
Shareholder: UUUM Corporation (100% owned consolidated subsidiary)
Business content: P2C business, original goods business,
The "all-night sleep measurement" conducted jointly with Sleep LIVE Inc. and Sleep Research Labo 睡眠科学研究所 showed a statistically significant difference (p<0.05) in "sleep onset" and "sleep maintenance" when wearing this product.
In recent years, as interest in the "quality" of sleep has grown, this research result suggests that rethinking the daily habit of wearing pajamas is an effective means to achieve "stable sleep" with smooth sleep onset and fewer awakenings during sleep.
*p<0.05 is a common standard for determining statistical significance.
This study was conducted on 10 healthy adult women (35-65 years old), and the design suppressed the influence of individual differences by comparing within the same subjects.
Sleep status was measured by combining objective evaluation using actigraphs and sleep depth measuring devices, and subjective evaluation using the OSA Sleep Sensation Survey.
■ About Nemureca Pajamas Performance
Nemureca Pajamas
・Design that supports body temperature regulation
・Stress-free comfort
・Uses proprietary material "NEMUREC Core®︎"
is a wellness item focusing on the daily sleep environment.
Through Nemureca Pajamas, we propose creating an environment for easier and more stable sleep.
Details of Nemureca Pajamas here: https://x.gd/9XXrP
■ Research Results
《Sleep Efficiency》
As a result of objectively measuring sleep status, a statistically significant difference in sleep efficiency was confirmed when wearing Nemureca Pajamas compared to general pajamas. Sleep efficiency when wearing Nemureca Pajamas was 85.27%, while general pajamas was 83.26%, a result approximately 2 points higher (p<0.05).
《Sleep Onset and Sleep Maintenance》
In subjective evaluation, a statistically significant difference was also confirmed in indicators related to sleep onset and sleep maintenance when wearing Nemureca Pajamas compared to general pajamas. The scores were 49.13 and 41.76 respectively, showing a difference of 7.37 points (p<0.05).
From the results of this study, Nemureca Pajamas showed changes such as:
・Easier to fall asleep
・Less awakening during sleep
・Increased state of actual sleep
This suggests that Nemureca Pajamas may influence aspects related to sleep quality, such as "ease of falling asleep" and "sleep stability," not just sleep duration.
■ What is mariness
mariness is a wellness brand with the concept "Through health, love yourself more." It develops items that naturally blend into daily life from three health axes: "exercise," "diet," and "rest." It aims to fit health opportunities into daily routines and continuously provide triggers for healthy habits. Even without special time or preparation, by "replacing daily life with mariness," it effortlessly supports a step towards a healthy life. The #1 popular product, "Mariness Protein," has won Rakuten "Shop of the Year" for two consecutive years. Cumulative sales across the brand have exceeded 1.8 million units, gathering widespread empathy.
Official Online Store: https://mariness.jp/
Official Instagram: https://www.instagram.com/mariness_official/
Official X: https://x.com/mariness_jp
YouTube Channel "Marina Takewaki": https://www.youtube.com/c/MarinaTakewaki
■ About P2C Studio Inc.
P2C Studio is a professional company that realizes "brand and product creation starting from people" in the P2C (Person to Consumer, PtoC) domain. It strategically develops diverse product creation such as brands, goods, licenses, and digital content, and integrated marketing communication and EC/store sales that maximize creators' information dissemination power.
Established: June 2021
Representatives: Shinji Senoo, President & CEO / Tomoki Omichi, Vice President
Location: Midtown Tower 28F, 9-7-1 Akasaka, Minato-ku, Tokyo
Shareholder: UUUM Corporation (100% owned consolidated subsidiary)
Business content: P2C business, original goods business,