a global group or at an individual level. It was created with the help of sleep experts and public opinion research experts. It is composed of three sub-component scales: sleep duration, sleep quality, and sleep disorders. The Index is fielded quarterly and results are publicly available.

Sleep in America Poll

NSF has conducted a national poll called Sleep in America Poll to catalog the state of sleep in America since 1991. This poll provides valuable information to the public, sleep community and the media on specific topics

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