New Health Management Service that Visualizes "Sleep"
New Health Management Service that Visualizes "Sleep"
Changes in Japanese Sleep Duration
Sleep duration has been on an upward trend since the COVID-19 pandemic, with the average sleep duration for 10,000 workers in 2025 being 6 hours and 50 minutes, a result on par with 2024, which was the longest in the past five years of surveys. Although sleep duration has been increasing since the pandemic, it remains overwhelmingly shorter compared to the average sleep duration of 8 hours and 28 minutes in OECD member countries. Japan's sleep duration continues to be at the lowest level globally. It is believed that more conscious reform is needed to extend the average sleep duration in Japan in the future.
《Survey Results》
No change compared to 2024.
Ages 20-30 average over 7 hours of sleep
*One-way ANOVA was performed on all data, confirming a significant difference (p<0.01). In addition, a Bonferroni-corrected t-test was performed for the comparison of sleep duration with the previous year, confirming a significant difference from 2020 to 2024 (all p<0.01)
Sleep State Misperception
Sleep state misperception refers to a discrepancy between "actual sleep duration" and "perceived (felt by the individual) sleep duration."
《Survey Results》
Many people feel their perceived sleep duration is 23 minutes shorter than their actual sleep duration.
*A t-test was conducted between actual sleep duration and perceived sleep duration, confirming a significant difference (p<0.01)
Gap between Ideal and Reality of Priorities after Work
Many people may not go to sleep until all their daily tasks are completed. The results show that "sleep" has the largest discrepancy between the ideal and reality of prioritized activities after work.
《Survey Results》
Although people want to prioritize "sleep,"
in reality, "work (including overtime and commute time)" is prioritized.
* A chi-squared test was performed between the ideal and reality of the proportion of respondents who answered they wanted to prioritize the most, confirming a significant difference for all behaviors (p<0.01).
Relationship between Commute Time and Sleep
It has been reported that there is a correlation between commute time※1 and sleep duration.
This survey revealed that commute time affects not only sleep duration but also sleep quality.
*1 Tada and Sugishita, Economic and Social Research Institute, Cabinet Office, 2010
《Survey Results》
Long commute times affect not only sleep duration but also sleep quality.
* Commute time: Time spent commuting per day
* Sleep quality score: Scoring based on responses to original questions
* Regression analysis was performed between commute time and sleep duration, and between commute time and sleep quality score, confirming significance for both (p<0.01)
Awareness of Sleep Apnea Syndrome (SAS)
Sleep apnea syndrome (SAS) is a sleep disorder in which "apnea" (breathing cessation for 10 seconds or more) or "hypopnea" (shallow breathing just before apnea) occurs during sleep.
It is one of the most common sleep disorders.※1 In Japan, the number of potential patients is estimated to be 22 million, and the number of patients with moderate or severe symptoms requiring treatment is said to be as high as 9.4 million.※2
※1 Guidelines for the Diagnosis and Treatment of Sleep Apnea Syndrome (SAS) 2020
※2 Benjafield AV, et
al: Estimation of the global prevalence and burden of obstructive sleep apnoea: a literature-based
analysis. 2019.
《Survey Results》
SAS awareness is approximately 77%
Brain Sleep can provide various information regarding this survey. Please contact us if you would like to use it.
*When using the contents of this survey, please be sure to cite "Sleep Deviation Value® Brain Sleep Research" as the source.
【Survey Overview】
Survey method: Web survey
Target region: Nationwide
Target conditions: Men and women
Sample size: n=10,000ss
Survey period: January 2025
*For comparisons of sleep deviation values and scores between groups, one-way ANOVA or t-tests were performed, and a significance level of less than 5% was determined as statistically significant.
*Some subjects and survey items have been changed compared to last year's survey.
This year's Sleep Deviation Value survey also yielded several noteworthy results. While no clear increase or decrease in sleep duration was observed, about half of the people felt they were not getting enough sleep compared to their actual sleep duration, revealing a tendency toward "sleep state misperception." Furthermore, it was very interesting to find that about 80% of people were aware of and understood sleep apnea syndrome.
This indicates not only an understanding of the importance of sleep but also a growing interest in sleep-related diseases. Additionally, the relationship between commute time and sleep duration, which has been discussed previously, was found to affect not only the shortening of sleep but also the deterioration of sleep quality. Sleep problems are often difficult for individuals to solve alone, and we hope that social initiatives by companies and governments to address sleep problems will be further promoted.