Turn Yellowed Pillowcases Bright White Again With This Simple 2-Ingredient Soak

We spend around eight hours a night with our pillows, seven nights a week, so it’s hardly surprising that they can start to show the signs of everyday use. Over time, a buildup of sweat, body oils, moisture, and skincare products can leave once-bright pillowcases looking stubbornly yellow.

But there’s no need to reach for harsh chemicals just yet. A simple, all-natural soak using two pantry staples could be all you need to bring yellowed pillowcases back to their bright, fresh-looking best. It’s an easy way to clean pillowcases and tackle stubborn discoloration at the same time.

And the best part? You probably already have both ingredients at home. Here, laundry and sleep experts explain why pillowcases turn yellow in the first place, and how to restore them with this surprisingly simple method.

What Causes Yellow Staining on Pillows?

As Rechelle Balanzat, Founder and CEO of Juliette, an NYC-based premium laundry service, assures, 'Yellow staining on pillowcases is really common.'

While you sleep, your pillowcase absorbs sweat, body oils, saliva, and traces of the hair and skincare products applied before bed. 'Over time, all of that builds up in the fabric and can leave behind that yellow color,' she explains.

Given that pillowcases and pillows are often among the things we’re not washing enough, it’s little wonder that yellowing can seem almost inevitable.

'While pillowcases provide a protective barrier, these substances can still gradually transfer through the fabric and affect the pillow over time,' adds Drew Miller, Vice President at Sit 'n Sleep. 'For sleepers, this is also a reminder that pillows require regular care and replacement. Even with proper cleaning, pillows naturally collect oils, allergens, and moisture throughout their lifespan.'

How to Whiten Pillowcases

Whitening your pillowcases and other bedding can be as simple as reaching for two hardworking pantry staples: vinegar and baking soda. For this method, I’d recommend this affordable White Vinegar, available at Amazon, and ARM & HAMMER Baking Soda, available at Walmart.

'Baking soda and white vinegar are commonly used household cleaning ingredients that can help refresh bedding materials,' explains Drew Miller. 'Baking soda can help absorb odors and loosen some residue, while vinegar can help break down certain types of buildup and mineral deposits.'

There’s an important catch, though: these ingredients work best separately, not together. 'When you mix the two, they basically cancel each other out, so the fizz isn’t really what’s cleaning your pillowcase,' advises Rechelle.

For a washable cotton pillowcase, she recommends soaking it in warm or hot water with around half a cup of baking soda for approximately 30 minutes. Rinse thoroughly, then wash as normal with your usual detergent. If the care label allows it, you can add a cup of distilled white vinegar to the rinse cycle.

'I wouldn’t pour the vinegar directly into the baking soda soak,' Rechelle cautions. Instead, using vinegar in laundry can help brighten and deodorize fabrics.

'And don’t put it straight into the dryer if you can still see the stain,' she adds. 'Heat can make stains harder to get out. I always recommend checking the care label first,' particularly when dealing with delicate fabrics. As Drew highlights, always make sure your pillowcases are completely dry before putting them back on the bed.

For a gentle, low-energy option, air-dry them on a Clothes Drying Rack, available at Amazon. Thorough drying helps prevent moisture buildup, which can contribute to mold, mildew, and further yellow staining. 'The best thing you can do is stay ahead of the buildup,' concludes Rechelle. 'Wash your pillowcases regularly and consider using a pillow protector. Once those oils sit in the fabric for a long time, they become much harder to remove.'

What to Shop

Below, shop pillow whitening essentials, Sleep Editor-approved bedding favorites, and pillow protectors to keep yours looking their best for longer.

It's equally important to regularly wash, dry, and care for your bed linen.

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