Many people overestimate how long they actually remain awake during restless nights because their moments of wakefulness are easier to recall than their moments of sleep. This best illustrates the impact of

Availability Heuristic

Explanation:

Heuristic is simply a mental alternative that helps in our decisions and judgments processes usually quickly without having to spend a lot of time in research and analyzes of information. Its examples includes availability, representativeness, and base-rate heuristics.

The Availability Heuristic is said to be an intellectual or a mental alternative ( that is a shortcut) that aids in a decision making process usually based on how easy it is to bring something to mind. its meaning is that individuals sometimes rely on how cheap it is to think of examplesin a decision making process or judgment.