6. It smells bad.
Your pajamas absorb sweat and create the perfect microclimate for bacteria. They thrive in damp, dark places and can produce unpleasant odors and disrupt your sleep.
7. It weakens your immune system.
If you wear the same pajamas night after night, your immune system is constantly fighting microbes, respiratory complications, and allergies. All of these factors can weaken your body’s defenses, making it harder to protect you from viruses.