Do I need to double cleanse if I only wear sunscreen?

Not always. One gentle but thorough cleanse may be enough. The goal is complete removal with the least unnecessary friction, not automatically completing two cleansing steps every night.

Double cleansing depends on what you need to remove

Double cleansing is a removal strategy, not a rule. If one gentle cleanse removes what you wore that day, a second cleanser may not add anything useful.

Clean should still feel comfortable

Water-resistant sunscreen or heavier makeup may need a separate removal step. The endpoint is clean skin without squeakiness, tightness, heat, or soreness.