A commonly recommended guideline is to wash pajamas after every three to four uses, though this can vary depending on lifestyle and conditions.

Daily activity levels, room temperature, and even how often bedding is cleaned can influence how sleepwear feels over time.

Environmental considerations also come into play. Washing clothes too frequently increases water and energy consumption and can shorten the lifespan of fabrics.

Rotating between multiple pairs, using gentle wash settings, and waiting until you have full laundry loads can help maintain both cleanliness and sustainability.