sleep-provoking

Oh, ho, oh. the which was infinitely sleep-provoking if not a refrain of a high intellectual order.

Gulliver of Mars Edwin Lester Linden Arnold 1896

Sleepy Hollow breathed into the place; one by one the congregation sank into slumber; the sanctified elders leaned back in their pews, spreading their handkerchiefs over their faces, as if to keep off the flies; while the locusts in the neighboring trees would spin out their sultry summer notes, as if in imitation of the sleep-provoking tones of the dominie.

Wolfert's Roost and Miscellanies Washington Irving 1821

the which was infinitely sleep-provoking if not a refrain of a high intellectual order.

Gulliver of Mars 1905