1. Introduction
  1.1 Background
  1.2 Research Objectives
  1.3 Significance of the Study

2. Literature Review
  2.1 Sleep Patterns in Animals
  2.2 Environmental Factors Affecting Sleep
  2.3 Previous Studies on Environmental Effects on Animal Sleep Patterns

3. Methodology
  3.1 Study Design
  3.2 Selection of Animal Species
  3.3 Data Collection Methods
      3.3.1 Sleep Monitoring Techniques
      3.3.2 Environmental Data Collection
  3.4 Sample Size and Statistical Analysis

4. Environmental Factors and Sleep Duration
  4.1 Effect of Light on Sleep Duration
  4.2 Effect of Noise on Sleep Duration
  4.3 Effect of Temperature on Sleep Duration
  4.4 Effect of Habitat Conditions on Sleep Duration

5. Environmental Factors and Sleep Quality
  5.1 Effect of Light on Sleep Quality
  5.2 Effect of Noise on Sleep Quality
  5.3 Effect of Temperature on Sleep Quality
  5.4 Effect of Habitat Conditions on Sleep Quality