Especially with juvenile monitors we must watch out for overheating because the body temperature of small animals increases more rapidly than with larger animals. Young animals which are exposed to a higher temperature, the body temperature will approximately increase with 35.06 degrees Fahrenheit (=1.7 degrees Celsius) per minute. (Source: D.Bennett) A bigger animal of approximately 400 gram will increase body temperature much slower and will increase approximately 32.36 degrees Fahrenheit (=0.2 degrees Celsius) per minute. As you can see, we must be carefull with juvenile monitors at all times especially in small enclosures where it is difficult to regulate the temperature (especially in the summer). Selecting the correct substrate with the correct depth or buying a thermostat can reduce the risk of overheating drastically.