The article contains sections titled:
1.
Introduction
1.1.
Amino Acids and Hormones Influencing Sleep
1.2.
Influence of Hypnotics on Sleep
1.3.
Requirements of Hypnotics
1.4.
Applications of Hypnotics
1.5.
Consumption of Hypnotics
1.6.
Classification and Evaluation of Hypnotics
2.
Sedatives, Antihistamines, and Tranquilizers
3.
Alcohols and Aldehydes
4.
Urethanes, Acyclic Urea Derivatives, and Amides
5.
Cyclic Carboxamides, Carboximides, Cyclic Urea Derivatives, and Related Compounds
5.1.
Barbituric Acids
5.2.
Piperidinediones
5.3.
Quinazolinones
5.4.
Benzodiazepines
6.
Other Hypnotics