The Victorian Chaise-Longue, by Marghanita Laski
This short novel sounded so interesting when someone else read it, and I finally ILLed it so I could read it too. It is short; about 100 pages long or so and I suppose really a novella.
It's 1952, and Melanie is a pretty, rather fluffy young wife and mother under treatment for tuberculosis. She spent nearly all of her pregnancy confined to bed, and now she is finally allowed downstairs, to lie on the large Victorian chaise-longue that was her last purchase before her diagnosis. She happily falls asleep...and wakes up in 1864, in the body of another person.
It's an unusual and frightening story. It reads like a domestic novel, not a time-travel fantasy or science fiction, but it's really scary as well. It's very good. I'm glad Persephone reprinted it so that I could get to hear of it.