Congestion was reported to impair the quality and duration of sleep across all countriessurveyed. Similarly, in a US-based Internet survey, 85% of respondents with AR reported nasal congestion, which was described as moderate or severe by
76%.5Nearly half of responding adults (48%) and 58% of children rated nasal congestion as the most bothersome symptom of AR because of its negative effects on quality of life, emotional functioning, work/school productivity, and ability to perform daily activities. Consistent with data from the European survey, US respondents reported a negative effect on sleep quality, with >80% indicating that nasal congestion
made it difficult for them to fall asleep or caused them to wake throughout the night