Sleeping Planet

From Author Wars - https://authorwars.com/publications/sleeping-planet-274590.html

Overview:

Title: Sleeping Planet
Author: William R. Burkett, Jr.
Year: 1966
Publisher: The Science Fiction Book Club (UK)
Pages: 297
Binding: Hardcover
Type: Novel
Title Reference: Sleeping Planet
Notes:
Month from the SFBC UK site, as well as the artist