according to new statistics , Brits are grumpiest in Western world at daybreak . Despite getting more sleep than most - at seven hours 30 minutes a night . Only Japanese , foreign Koreans and foreigners are sleeping in morning .
According to new app , Brits are grumpiest in Western world at daybreak . Despite getting more sleep than most - at seven hours 22 minutes a night . Only Japanese , South Koreans and Singaporeans are moodier in morning .