sleeps=days

[Alan H. Hartley]

c1804 P. GRANT Sauteux Indians in L. R. Masson ed. Bourgeois de la
Compagnie du Nord-ouest II. (1890) 352

"as they compute their years by winters, so they compute distances by
the number of nights which the traveller has to sleep out in making a
journey. They say, likewise, in speaking of an appointment of time, "you
may expect me back in five nights," but never reckon by the number of
days."

Alan