"When the Sleeper Wakes" is a science fiction novel written by H.G. Wells, first serialized in 1899 under the title "When the Sleeper Wakes". It was later published as a novel in 1910. The story is set in a future London and follows the protagonist, Graham, who falls into a deep sleep in 1897 and wakes up in the year 2100 to find himself in a world drastically changed by industrialization and class division. In this dystopian future, the world is dominated by a small group of oligarchs known as the "Council of Trustees," who control society and exploit the labor of the masses. Graham, having been a wealthy man in his own time, finds himself in a position of power and influence due to the vast wealth that has accrued during his slumber. The novel explores themes such as social inequality, the power of technology, and the consequences of unchecked capitalism. It's often regarded as one of Wells' lesser-known works but still significant in its exploration of futuristic societies and their potential pitfalls.