How do occupants rate the bedroom air quality?

Poor air quality has been shown to reduce sleep quality. There is a limited number of studies reporting how occupants rate the air quality in their bedrooms. The present study sheds the light on this issue. It was conducted in actual bedrooms and asked occupants to rate air quality once awake in the morning using an online sleep diary. The study was done in Denmark during the heating season. 178 responses from 82 subjects were received. Nearly all respondents rated air quality as acceptable. 28% indicated that the air was stuffy. Measuring CO2 and description of bedrooms would help to explain these results. They are analysed at the moment and will be reported in the subsequent papers