daysleeper

plural daysleepers

1. One who sleeps during the daytime.

   "I rose early to speak with you: I know you are a daysleeper."

   1975, Lester Del Rey, editor, Best Science Fiction Stories of the Year, volume 4, Dutton, page 96

   2 more examples

   I see today with a newsprint fray / My night is colored headache gray / Daysleeper

   1998, R.E.M., “Daysleeper”, in Up

   Individuals and societies may choose to extend days into nights, but this choice can invite sleep disorders, insofar as the sleep needs of daysleepers are understood as variances from social norms of sleep.

   2012, Matthew J. Wolf-Meyer, The Slumbering Masses: Sleep, Medicine, and Modern American Life, University of Minnesota Press, →ISBN, page 76