H. G. Wells 
The Sleeper Awakes [EPUB ebook] 

Graham, an Englishman living in London in 1897 takes drugs to cure insomnia and falls into a coma. He wakes up in 2100. He later learns that he has inherited huge wealth and that his money has been put into a trust. Over the years, the trustees, the White Council, have used his wealth to establish a vast political and economic world order.