sleeping porch

noun

a porch enclosed with glass or screening or a room with open sides or a row of windows used for sleeping in the open air.

Origin of sleeping porch

First recorded in 1880–85

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

But from his cot on the sleeping-porch he heard her weeping, slowly, without hope.
Babbitt
Sinclair Lewis
Had to have coupla blankets last night, out on the sleeping-porch.
Babbitt
Sinclair Lewis
Most important of all was the preparation of his bed and the sleeping-porch.
Babbitt
Sinclair Lewis
Or, by swinging a fifth piece of pie out of the window, a sleeping-porch could be added.
Hints to Pilgrims
Charles Stephen Brooks
But a thin and quavery and over-disturbing sound from the swing-box out on the sleeping-porch brought me up short.
The Prairie Mother
Arthur Stringer