Sleep is a dataset of mammalian sleep characteristics used for statistical analysis in fields such as sleep ecology and comparative physiology. Related research findings can be found in Sleep in Mammals: Ecological and Constitutional Correlates.

This dataset includes data on brain weight, body weight, lifespan, gestation period, sleep time, predation index, and danger index for 62 species of mammals.

Data Fields:

• body_weight: Body Weight
• brain_weight: Brain Weight
• max_life_span: Maximum Lifespan
• gestation_time: Gestation Period
• predation_index: Predation Index (1 = lowest, 5 = highest)
• sleep_exposure_index: Sleep Exposure Index (1 = lowest, 5 = highest)
• danger_index: Overall Danger Index (1 = lowest, 5 = highest)
• total_sleep: Total Sleep Duration