One of Tracey Emin’s best known and most controversial works, My Bed, first made in 1998 and once in private hands, is now on long loan to Tate and on display at Tate Britain. To accompany its return to the gallery (it was first shown in the Turner Prize display), Emin has selected two of her favourite paintings by Francis Bacon, an artist she has long admired, as she tells Tate Etc.