Without sleep, I feel tired and grumpy.

Meaning: It means that lack of sleep makes me feel exhausted and easily annoyed.

Choice of Words: Without means not having or experiencing something. Grumpy describes a person who is irritable, bad-tempered, or easily annoyed. "Without sleep, I feel tired and grumpy" means that when I don't get enough sleep, I feel exhausted and irritable.

Alternative Expressions

Related Expressions