File:OSChotsleep.jpg

Summary
Hot Sleep cover, source http://www.isfdb.org/cgi-bin/pl.cgi?17370

Fair use in Hot Sleep
Though this image is subject to copyright, its use is covered by the U.S. fair use laws, and the stricter requirements of Wikipedia's non-free content policies, because:
 * 1) The image is used as the primary means of visual identification of the article topic.
 * 2) It is a low resolution image, and thus not suitable for production of counterfeit goods.