1. The Duration of Sleep

2. The Consequences of Total Sleep Deprivation in Rats

3. EEG Recordings During The First Hour of Sleep

4. Physiological Changes During the Various Sleep States Over a Typical 8-hour Sleep Period

5. Activation of Specific Neural Circuits Triggers Sleep and Wakefulness

6. Cortical Regions Whose Activity is Increased or Decreased During REM Sleep

7. Electrophysiological States of Thalamocortical Neurons

8. Thalamocortical Feedback Loop and the Generation of Sleep Spindles

9. Subcortical/Cortical Interactions that Generate Wakefulness and Sleep

10. Muscle Paralysis & REM Sleep

11. Summary of the Cellular Mechanisms that Govern Sleep and Wakefulness

12. Waking and Sleeping Rhythm in an Isolation Chamber With/Without Cues About the Day-Night Cycle

13. Anatomical Underpinnings of Circadian Rhythms

14. Entrainment

15. Molecular Mechanisms of Biological Clocks