If you meant academic research regarding biological dogs, several recent and significant papers provide insight into their health and behavior:
The paper Developmental features of sleep electrophysiology in family dogs discusses how sleep patterns change as dogs age, noting that a dog's central nervous system is often not fully mature even at 12 months. sleeping-dogs-links-pc
This query likely refers to one of two distinct areas: the for PC, or scientific papers regarding the sleep patterns of actual dogs. 1. Sleeping Dogs (Video Game) – PC Resources If you meant academic research regarding biological dogs,
For core controls and combat mechanics (like grappling with 'F' and striking with Left Click), Feral Interactive hosts the Official Game Manual . sleeping-dogs-links-pc