Aera Home's Research on Heat Nights and Sleep Quality in Japan 2025

Aera Home's Comprehensive Survey on Heat Nights and Sleep Issues in 2025

As Japan braces for another sweltering summer with temperatures potentially soaring around 40 degrees Celsius, Aera Home, a prominent real estate company based in Chiyoda, Tokyo, has conducted a thorough investigation into the impact of these oppressive heat nights on sleep quality. Their corporate philosophy, aiming to create a beloved lifestyle by developing comfortable living spaces, guided this crucial survey.

Survey Overview

In a study targeting a diverse group of 322 individuals aged 10 to 70, Aera Home focused specifically on the correlation between tropical nights—nights with temperatures remaining at 25 degrees Celsius or higher—and the quality of sleep. The survey results reveal alarming concerns regarding residents' nighttime comfort amid increasingly harsh climatic conditions.

Key Findings

1. Impact of Heat Nights on Sleep Quality: Approximately 93% of participants reported feeling a change in their sleep quality due to heat nights. An overwhelming 48.1% stated they frequently felt affected, while 44.7% occasionally experienced disturbances, translating to more than 90% overall.

2. Common Sleep Issues: The survey highlighted significant complaints, with many individuals reporting difficulties falling asleep and frequent awakenings during the night. These prevalent concerns depict a growing need for effective solutions to ensure restful nights.

3. Measures Taken to Combat Sleep Disruptions: The primary strategy employed by respondents to achieve a more comfortable sleep includes the use of air conditioners, with a notable preference that exceeds the use of fans by 73 responses. This underscores a trend where many have adapted to utilizing air conditioners as a necessary tool for handling summer heat.

4. Dissatisfactions with Cooling Methods: When it comes to utilizing air conditioning or fans for sleep, complaints revolve around rising electricity bills and feelings of excessive chill or lethargy. The increasing energy costs, exacerbated by the recent surge in energy prices, have led to heightened concerns regarding household finances.

5. Perception of Home Performance: A significant 94% of respondents believe that the performance of their homes—specifically insulation and airtightness—directly influences sleep quality on tropical nights. Interestingly, only 43.5% felt positively about their home's insulation and airtightness, while nearly 37% expressed dissatisfaction, indicating considerable room for improvement in many residences.

6. Attraction to Improved Home Features: Respondents showed interest in proposals for homes designed to ensure comfortable sleep during heat nights. Top attractions included energy efficiency, humidity control capabilities, and superior insulation and airtightness. Such features align well with Aera Home’s commitment to developing advanced living environments.

Survey Details

- Name: Survey on ‘Heat Nights’ and ‘Sleep’ Issues
- Method: Internet Research via ‘knowns’
- Date: July 18, 2025
- Sample Size: 322 men and women aged 10 to 70 throughout Japan

Conclusion

Given the alarming statistical trends indicating a high rate of discomfort due to heat nights, Aera Home remains dedicated to addressing these issues through innovative housing solutions. Their commitment to quality living spaces continues to play a vital role in enhancing the well-being of residents during increasingly hot summers.

For more information about Aera Home’s high-performance insulation and airtight homes designed for comfort and energy efficiency, visit Aera Home.