I have the worst habit of tossing my clothes in the washer… and forgetting them in their for farrr too long. A study found that leaving wet laundry overnight usually isn’t an issue, as long as you’re not letting it sit through the night and late into the next day. Doing so can eventually cause mold and mildew to grow in your towels and favorite T-shirts, which not only smells unpleasant but can also cause health issues.
Within the first 8 to 12 hours, you won’t get any odor but if you do, it’s time to re-wash! Odor is often a sign that there is mildew. If you let your wet clothes sit long enough, you’ll have to deal with not only the mildew smell in your clothes, but also possible stains and patches of not-so-fresh….potentially rotting fabric. Eeek!