Bearded dragons require carefully managed temperature gradients in their habitats to maintain their health. The warmer end of their enclosure should be between 95 to 105 degrees Fahrenheit to facilitate basking. The cooler end should be maintained at around 85 degrees Fahrenheit. At night, the entire habitat can be cooler. It's essential to monitor these temperatures frequently using reliable thermometers and hygrometers to ensure the environment remains within these critical ranges, providing the necessary heat and light to support their physiological needs.