An unwashed, dirty pillow may be to blame. Have you developed a crick in your neck? Does your bed seem musty? Are you dealing with a mysterious allergic reaction?

Here’s how often to wash your pillow and the best ways to clean them, whether your pillows are down, memory foam or fiberfill. Learn how to handle yellow stains and when it's time to replace them.

If you have a memory foam pillow but don’t know how to wash it, here’s a step-by-step guide.

If you have a front-opening washing machine, add hot water and detergent to a large, deep sink and let your pillows soak for an hour or two before adding back to the washing machine. just.Luc/Flickr ...

Already wash your bedding regularly? It might surprise you to learn pillows need washing, too. Here's why, plus a few helpful washing tips.

Learn how to wash pillows the proper way, which can extend their life considerably. Careful though, not all pillows can be thrown into the washing machine! How to Wash Pillows: A Brief Guide for ...

Step 2: Wash two pillows in a single load to balance the washer. Step 3: Use only a tablespoon of detergent to prevent over-sudsing and detergent buildup inside the pillow.

Yes, it is possible to wash pillows—but we don't recommend it for those $5-a-pop, polyester-fill ones you stocked up on in bulk for your guest room.

First, check the wash instructions on your pillows’ tags to make sure they can be tossed in the washing machine. This will vary based on the material and even the manufacturer.

If you’re wondering how to properly wash your pillows or want to know when it’s time to replace them, keep reading for the answers to these questions and more. Advertisement.

If air-drying: Place pillows on a drying rack in a well-ventilated area, flipping occasionally, Once completely dry, fluff by hand and enjoy your fresh, clean pillows. How to Hand-Wash Feather Pillows ...

As well as maintaining good hygiene standards, washing down pillows on a regular basis can also help to preserve the pillow’s loft and comfort. (Image credit: Getty Images) How to wash a down pillow ...