Lacy Gallery, London; private collection, Europe; Adam Williams Fine Art, New York/Åmells konsthandel, Stockholm.

Folke Holmér, "En bok om Stefan Johansson", 1958, see black and white photographs of the artist's sleep corner, p. 55 and watercolours "Sleep Corner I" (1939) and "Yellow lamp" (1945) reproduced in B/W p. 108 and 115; Stefan Hammenbeck, "Stefan Johansson. Bara tiden och livet förslog", 2007, four other versions of "Sleep Corner", dated 1939, 1942, 1945 and ca. 1945, reproduced in B/W and colour respectively on p. 12-15 where the author also discussed the motif in captions.