10.40 Sleep and Fatigue (Alertness Management)

10.40.2 Explain how individuals differ in their requirement for sleep. 

Individuals differ in their requirement for sleep due to many factors, including:

• age;

• genetics;

• lifestyle; and

• health status.

While the average adult requires around 7–9 hours of sleep per night, some individuals may require more or less sleep to feel rested and alert.

For example:

• infants and young children require significantly more sleep than adults;

• older adults may experience changes in their sleep patterns;

• genetics can influence how much sleep an individual requires;

• lifestyle factors such as exercise and stress can affect sleep needs; and

• medical conditions or medications can affect the quality and quantity of sleep.

Key point

There is no single amount of sleep that is ideal for everyone.

The important factor is obtaining enough good-quality sleep to remain rested and alert.

10.40.4 Explain the effects of the following alertness management techniques: 

(a) napping 

Napping can be an effective way to improve alertness and reduce fatigue, particularly when taken at appropriate times.

Short naps of around 20–30 minutes can help improve: