A quick search for 'Why Does My Pillow Turn Yellow' often yields images of discolored, stain-ridden pillows that most would rather not sleep on. Yellowing is not just an aesthetic issue. Yellow stains can indicate a buildup of dirt, oils, sweat, and even allergens like dust mites, so it’s good to address them quickly to keep your pillows fresh and clean. If you want to understand why your pillow turns yellow and learn simple, effective ways to keep it clean, fresh, and looking like new, this article is for you.
One way to keep your pillows fresh and clean is to invest in hypoallergenic bedding, like Yumerest’s cloud-like fluffy duvets. Not only are they ultra-soft and cozy, but they also help reduce allergens in the bedroom that can affect your pillows.
Why Does My Pillow Turn Yellow?
As you sleep, different types of bodily moisture can accumulate on your pillowcase. When this moisture seeps through, it can cause your pillow to stain yellow. Though sweating is a frequent source of pillow discoloration, there are other common culprits.
Sweat
There are many reasons why you weigh less in the morning than you do in the evening, and it's not because your body has had a chance to digest dinner last night. One of those reasons is that you perspire while you sleep.
The average person can lose as much as 1 liter of water overnight, and that 'water' has to go somewhere. Some of the liquid is processed internally (which is why you need to urinate first thing in the morning), but it's also sweated into your down comforter, feather bed, or pillows, or a combination of these.
How Night Sweats Turn Pillows Yellow
While excessive sweating at night can be a sign of a more serious health condition, a certain amount of sweating during sleep is a standard way the body regulates temperature. Sweat can also leak through your pillowcase, causing yellow stains.
There are certain things you can do to minimize this process, though. Sleeping in a cooler room or wearing lighter pajamas are just a couple of strategies to mitigate night sweats and keep your pillow from turning yellow.
Moisture: More Than Just Sweat
Moisture is everywhere; we are not talking about the moisture and humidity outside because you probably don't sleep outside. The level of moisture inside your house, the temperature you set your thermostat to while you sleep, and the moisture from your hair and perspiration can significantly impact the longevity of your luxury down bedding.
Regardless of the temperature, it's not something we typically think about in terms of its effect on our down bedding or sleep environment, but its impact is very real.
How Moisture Ruins Pillows and Bedding
Moisture and humidity can destroy down, causing it to lose its loft and its ability to insulate properly. Moisture and humidity can create yellow stains on pillowcases, and your pillows will start to discolor.
Do not underestimate the impact a duvet cover and your flat sheet can have on the amount of additional, and potentially unwanted, warmth they can add to your bedding environment.
Wet Hair
For people with long hair who shower at night, going to bed with wet hair might seem unavoidable. Damp hair behaves similarly to sweat when it comes to turning a pillow yellow.
The water left over from a nighttime shower can penetrate your pillowcase, causing yellow stains and discoloration. Showering in the morning or leaving adequate time between a shower and bedtime can ensure drier hair and less moisture on your pillow.
Drool
Allergies, acid reflux, and teeth grinding are just a few of the reasons why you might drool in your sleep. Back sleepers are less prone to drooling than those who sleep on their stomach or side. By addressing the causes of drooling, you can help limit excess moisture on your pillow.
Skin and Hair Oil
The parts of the body responsible for producing hair and skin oil are called sebaceous glands. These glands produce a substance called sebum, which is crucial to dermatological health.
Overactive sebaceous glands can lead to oily skin or hair. This excess oil can then absorb into your pillow and make it turn yellow. Additionally, if you don't wash your pillow regularly, it will absorb dirt and dead skin cells, which can also contribute to discoloration.
Lotions, Face Creams, and Beauty Products
Whether it’s simply washing your face or applying various lotions or creams, many people have a nightly skincare routine. When you rub these beauty products on your face right before bedtime, they may not have sufficient time to absorb into your skin. Unabsorbed skincare products can seep into your pillow and contribute to discoloration and stains.
External Factors
External factors can also contribute to the discoloration of pillows and pillowcases. For example, if you eat or drink in bed, you may accidentally spill food or drink on your pillow, leaving behind stains. Additionally, dust mites can accumulate on your pillow over time, leaving behind yellowish-brown stains.
Material Breakdown
Finally, the breakdown of pillow materials can also cause yellow stains. Down and feather pillows, for example, can break down over time and release oils that can leave behind stains. Memory foam pillows can also discolor over time due to exposure to light and air.
Is It Bad To Sleep With A Yellow Pillow?
No product lasts forever, and even the best pillows can develop a yellowing over time. There are several reasons why sleeping on a discolored pillow could disrupt your sleep or even be detrimental to your health.
The First Is The Presence of Allergens
Yellowed pillows visibly show the amount of grime that has accumulated over the months (or even years), which can pose problems for respiratory and sleep health. “These old, yellow stinky pillows are exposing you to allergens and creating a breeding ground for mould,” said Dr Zachary Rubin.
Continuing to sleep on a yellow pillow for an extended period can also lead to acne and other types of skin irritation, as the buildup of dirt can clog pores. Those who suffer from eczema, rosacea, sensitive skin, or existing acne should err on the side of caution when sleeping on a discoloured pillow.
Why Yellow Pillows Can Affect Your Health
When these allergens accumulate, they can trigger allergic reactions that may make it more difficult to sleep. Lack of sleep, in turn, can lead to a weakened immune system and other health issues.
The sweat, oil, and dead skin cells that cause a pillow to yellow can also clog pores, potentially leading to skin breakouts. Pillows can also be a source of bacterial buildup over time. We recommend replacing your pillow every one to two years or if it shows signs of excessive discoloration.
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How to Prevent Your Pillows From Turning Yellow
Shield Your Pillow with a Protector
A pillow protector is a breathable fabric case that goes between your pillow and your pillowcase. It prevents staining and yellowing, thereby extending the lifespan of your pillow. Look for a waterproof pillow protector to stop sweat, drool, and beauty products from soaking into your pillow.
Invest in a Quality Pillowcase
Most of us use a pillowcase anyway, so it makes sense to invest in one that will help keep your pillow clean. A good pillowcase adds a layer of comfort while preventing yellowing by keeping your skin and hair healthy.
Some even offer cooling benefits that are ideal for hot sleepers experiencing night sweats. Wash your pillowcase regularly, ideally once a week with your bed sheets.
Wash Your Pillows: The Right Way
How often do you wash your pillows? Thomas Høegh Reisenhus, a sleep specialist and sleep counselor at TEMPUR®, advises washing them in the washing machine every four to six months, following the care label instructions.
Latex and memory foam pillows should not be washed in the washing machine. If you have any doubts about whether you can wash pillows in the washing machine, always check the care tag.
'Use the hottest wash setting that the product label lists. Cotton can be cleaned on a hot wash (140 degrees F), whereas some other materials like polyester can only be washed in warm water,' he explains. Avoid skin irritation by using a non-bio laundry detergent, and thoroughly rinse the pillows to remove any residual detergent.
Identify the Cause of the Stain
Yellow-stained pillowcases can be unsightly and bothersome to clean, but often this is because you’re not using the proper treatment for the type of yellow stain. Several factors can cause discoloration, so before washing, I recommend identifying the cause of the staining.
Use the Right Cleaning Product for the Stain
Body Oils
Our skin and hair contain an oil called sebum, which can produce yellow staining, explains Kathleen. If you generally shower in the morning rather than the evening, oils could be the cause of the staining.
An easy fix for this is, logically, the same shampoo you use to wash your hair. She suggests applying the shampoo to the stain and leaving it to soak in warm water. Once you’ve given it a good scrub (try a stain-removing brush), add it to the wash as usual.
Sweat or Saliva
Many people experience sweating or dribbling in their sleep, which is another common cause of staining to bedding. Both of these types of stains can be remedied by cleaning with vinegar. Make a homemade solution of water and white vinegar. Let your pillowcases soak for approximately 30 minutes before adding them to your regular wash.
For particularly stubborn stains, leave the cases hanging outside or by a window for the day, as UV from the sun can break down the stain and even help kill germs.
Fake tan
Fake tan can leave behind marks on our clothes and sheets. Remove fake tan stains by applying a mix of dish soap and water in circular motions. Work until the stain begins to fade, then rinse with cold water and add it to the wash as usual.
Assess Your Bedtime Routine
Other tips for preventing stains include ensuring your hair is 100 percent dry and free of product before going to bed to avoid pillow stains caused by moisture and hair products. Excess skincare products will inevitably leave behind oils as well. Avoid using bleach because, aside from the harsh chemicals, it won't remove grease stains.
Know When to Replace Your Pillow
Over time, even the most durable and high-quality pillows wear out and lose their ability to support your head and neck properly. Knowing when it's time to replace your pillow is key to maintaining the quality of your sleep and ensuring your bedding remains hygienic. Here are several signs that indicate it's time to replace your pillow:
Loss of Shape
A pillow that no longer returns to its original shape after being pressed down is a clear indication that it needs to be replaced. Over time, the filling, even in the best organic latex pillows, can compress and lose its ability to provide adequate support.
Visible Stains and Discoloration
While regular washing can extend the life of your pillow, visible stains and yellowing caused by sweat, oils, and saliva can penetrate deep into the pillow, contributing to a buildup of allergens and bacteria. Even with organic materials, pillows are not immune to these changes.
Increased Allergy Symptoms
If you find yourself waking up with a stuffy nose, itchy eyes, or other allergy symptoms, your pillow could be to blame. Over time, it can accumulate dust mites and other allergens, impacting your sleep quality and health.
Consider How Long You’ve Had Your Pillow
Even the highest quality pillows have a lifespan. Generally, it's recommended to replace your pillow every one to two years. Regular inspection for signs of wear and tear can help determine the right time for a replacement.
What the Experts Say
Thomas from Tempur says that despite regular cleaning, bacteria will still build up, so it’s essential to replace your pillow every three years. Not only will this mean you get to enjoy a clean and fresh pillow, but you’ll likely find it much more comfortable as well.
Washing bed sheets regularly also helps keep pillows fresher for a longer period. The best pillow will also help you sleep better.
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How to Remove Yellow Stains From Pillows
While pillow protectors and high-quality pillowcases can help prevent yellow stains, it’s challenging to protect your pillow from discoloration completely. If you notice your pillow starting to turn yellow, there are certain things you can do to try to remove these stains.
Read Care Instructions
Pillows have varying care guidelines depending on their materials and construction. For example, while certain pillows are machine washable, others are too delicate and must be taken to a dry cleaner or spot cleaned. Before attempting to remove yellow stains, ensure you’re familiar with the manufacturer’s care instructions to prevent damage to your pillow.
Spot-treat Stains
If your pillow isn’t machine washable, you can spot clean yellowed areas. Spot-cleaning involves carefully applying a soap or other cleaning agent to the affected area, then wiping and rinsing it off with a small amount of water. By repeating this process, you can decrease the severity of yellow stains.
Lemon Juice and Baking Soda
Create a paste using lemon juice and baking soda, then gently rub it onto the yellow stains. Let it sit for about 30 minutes before rinsing thoroughly and allowing the pillow to dry.
Hydrogen Peroxide Solutions
Mix equal parts hydrogen peroxide and water. Dab the solution onto the stained areas, let it sit for a few minutes, and then rinse with water. Test a small, hidden area first to ensure it doesn't damage the fabric.
Vinegar Soaks
Submerge the yellowed pillows in a mixture of warm water and vinegar (in a 1:1 ratio) for a few hours or overnight. After soaking, wash the pillows in the washing machine with a mild detergent to remove any remaining vinegar smell.
Oxygen-Based Bleach
Use an oxygen-based bleach (without chlorine) suitable for fabrics. Follow the product instructions and soak the pillows in a solution to help break down and remove the yellow stains. Always follow the care label instructions and avoid overusing bleach.
Enzyme Cleaners
Enzyme-based cleaners (like stain & odor removing sprays, or pet urine removal sprays) are effective at breaking down organic stains. Apply the cleaner to the stained areas, gently scrub, and allow it to sit for the recommended time before washing the pillows.
Sunlight Exposure
Worried about damaging your pillow or pillowcase with harsh solutions? Sunlight can help naturally bleach and freshen pillows. After spot treating or washing, hang the pillows in direct sunlight to dry. Rotate them occasionally to ensure even exposure, and ensure they are scorched before using them again.
Remember, it's essential to read care labels and test any cleaning solution on a small, inconspicuous area before applying it to the entire pillow. Different fabrics and pillow types may react differently to cleaning methods.
Machine-Washing Yellow Pillows
If your pillow is machine washable, follow the care instructions and wash it in the machine. To help whiten your pillows, you could add bleach or white vinegar to your mild detergent. In our experience, many brands recommend non-chlorine bleach, so be sure to check the type of bleach you have if you choose this route.
Most machine-washable pillows can be dried on a low heat setting in a dryer. For the best results, place one to two dryer balls or tennis balls inside tube socks along with your pillows. These will bounce around inside the dryer and will redistribute its filling, helping it to dry as efficiently as possible.
How to Clean Memory Foam and Latex Pillows
Pillows made from memory foam or natural latex cannot be put in the washing machine, so you’ll have to spot-clean them. Instead of rinsing your pillow in the washing machine, take the same damp cloth to remove any detergent or stain remover left behind. Allow the pillow to air dry thoroughly in a well-ventilated area, preferably in direct sunlight.
If these cleaning methods don’t work for removing your yellow stains, consider investing in a high-quality feather pillow and a matching pillow protector.
Prioritize Natural Drying Methods
If the manufacturer recommends it, then dry your pillows in the sunlight. Sunlight has natural bleaching properties that can help keep pillows bright and free from yellow stains without the harmful chemicals found in traditional bleaches. Keep in mind that some pillows, such as those made from latex, should not be exposed to sunlight, as they can be damaged.
When under sunlight, make sure to periodically flip your pillow to avoid excessive exposure that could degrade the material. If you must use a dryer, select a low heat setting to prevent the breakdown of fibers, which can cause the fabric to yellow.
Get Deep Sleep Every Night with Our Cloud-like Soft Fluffy Duvets
While yellow stains can be managed with the proper care, sometimes the real fix isn’t just cleaner pillows, it’s a better sleep environment altogether. That’s where Yumerest comes in.
Cloud-Soft Duvet for Deeper Sleep
Yumerest's PureFlow Duvet transforms your bedroom into a luxurious sanctuary, enveloping you in cloud-like softness with its exceptional 5kg filling, which promotes deeper and more restorative sleep.
Crafted by expert artisans using techniques perfected since 1946, our duvets combine traditional craftsmanship with modern innovation to deliver an unparalleled sleeping experience. Get deep sleep every night with our cloud-like fluffy duvets.
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