Definition of «beauty sleep»

"Beauty sleep" refers to the amount of sleep that is thought to improve one's physical appearance and overall attractiveness.

Getting beauty sleep has never quite found its true expression as with this supplement. (newhope.com)
I now get to enjoy the luxury of 5 hours of beauty sleep a day — well, most days that is. (entrepreneur.com)
Her plan was to get some much - needed beauty sleep on the plane ride. (travelinsurancereview.net)
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