Michael Rubino wrote a featured article at mindbodygreen discussing how pillows get moldy, why it's bad, and how to avoid it.

Considering that we spend about a third of our lives nestled up against our pillows, these trusty sleep companions play an instrumental role in our snooze.

They offer spinal support, help us avoid that dreaded neck kink, and just provide a pleasant place to rest our heads at the end of a long day. The journey to better sleep doesn’t end with finding the perfect pillow, though. Keeping up with maintenance is vital to preventing mold in pillows—which is gross at best and dangerous at worst.

Why you definitely don't want a moldy pillow

Without regular cleaning and care, pillows can accumulate contaminants and particles that could leave you in a nightmarish situation. Here are a couple of fast facts that might keep you up at night:

Read the full article here:  https://www.mindbodygreen.com/articles/mold-on-pillow