Response

We appreciate the cautious optimism offered in the two letters responding to our editorial. Our criticism of self-reported sleep duration in epidemiology is not new (references 2-5 in our editorial1). In fact, the recent AASM consensus statement2 regarding healthy sleep duration (NB: consensus is the lowest form of evidence) notes the limitations of self-reporting in detail, and specifically anticipates "opportunities for accurate, reliable, scalable objective sleep duration assessment in large epidemiological studies."

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