If it meant “time in bed”, *then* they’d need the disclaimer about “efficiency”....

		dpark on Jan 2, 2019 \| parent \| context \| favorite \| on: Why We Sleep, and Why We Often Can’t If it meant “time in bed”, then they’d need the disclaimer about “efficiency”. Someone who takes an hour to fall asleep would be “inefficient” and need more time in bed, but they wouldn’t actually need more sleep.