Difference between Insomniac and Sleepless

What is the difference between Insomniac and Sleepless?

Insomniac as an adjective is suffering from or pertaining to insomnia. while Sleepless as an adjective is characterized by an absence of sleep.

Part of speech: noun

Definition: One who suffers an inability or difficulty sleeping; a sufferer from insomnia.

Part of speech: adjective

Definition: Suffering from or pertaining to insomnia.

Part of speech: adjective

Definition: Characterized by an absence of sleep.

Example sentence: I used to think that driving, sleepless, ambitious labor was what you needed to succeed.

We hope you now know whether to use Insomniac or Sleepless in your sentence.