Moisturizing before bed is generally a sensible step for anyone whose skin feels tight, dry, or irritated after cleansing, because nighttime is when the skin barrier can recover without sun exposure. It is especially useful if you use drying active ingredients, such as retinoids or acne treatments, that benefit from a hydrating buffer. However, people with very oily, acne-prone, or reactive skin should choose a lightweight, non-comedogenic formula and avoid heavy or fragranced products. If you have persistent redness, breakouts, or a diagnosed skin condition, consult a board-certified dermatologist.