How To Sleep After a Keratin Treatment: Caring for Hair After Keratin

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There are plenty of things to consider when taking care of keratin-treated hair.

Aside from knowing how to wash your hair, you also need to think about what you should do during your night time routine. 

Continue reading to learn why you should be mindful of your sleeping routine, especially after applying keratin on your hair.

Benefits of Keratin Treatment

A beautiful woman with long brown hair posing on a brown background after a keratin treatment

Keratin treatments are popular among people who want to achieve smooth, frizz-free hair. 

The treatment involves using chemicals to break down the bonds of the hair shaft, which are then sealed with a flat iron. This leaves the hair looking sleek and shiny.

These are some of the reasons people go for a keratin treatment:

Straighten Hair

This is perhaps the most popular benefit of keratin treatments. Some people just want to tame their hair and have it look sleeker and shinier. 

If you have naturally curly hair and want to keep your hair straight, a keratin treatment can give you the sleek look you desire.

Reduce Frizz

A keratin treatment can smooth and defrizz your hair. 

This is because the treatment coats the outside of each strand of hair with a protein that helps to seal in moisture and keep your hair looking sleek.

Strengthen Locks

This type of treatment can also be used to help strengthen the hair shaft. 

This is because when the treatment is applied, it temporarily mends any areas of damage on the cuticle. 

This helps to give your strands a chance to grow out stronger and healthier overall.

Lock In Color

Keratin treatments can help to lock in color, making it last longer between dye jobs. 

This is especially beneficial for those with brittle or damaged hair that is prone to breakage and split ends.

Increase Manageability

Keratin treatment can make your hair much more manageable by smoothing down the cuticle, making it easier to style.

Why You Should Mind Your Sleeping Habits After a Keratin Treatment

While keratin treatments can be beneficial for your hair, it is important to take care of your locks after the treatment in order to maintain its healthy appearance.

This means knowing what to do with your hair when you sleep. After all, you’ll be in bed for six to eight hours or more, which can put a lot of strain on your treated hair.

If you’re not careful, this can damage your newly pampered mane and lead to permanent creases. 

This can undo all of the hard work that your stylist has put into your hair and cause you to have to start the process all over again.

How to Sleep After a Keratin Treatment: Caring for Keratin Treated Hair

These are the steps you can take to maintain your keratin treated hair even while asleep:

Leave Hair Loose

After a keratin treatment it is important that you let your hair down and do not tie it up in any way. This will allow the hair products to penetrate your hair shaft and work its magic.

You may be in the habit of sleeping with your hair in a ponytail or bun, but after a keratin treatment it is best to let your hair down to avoid any potential breakage.

Even just a bit of a curl can make a big difference in how your hair looks after a keratin treatment. 

Wearing your hair down will also help it to air out and prevent matting while you sleep.

Stay on Your Back

Sleeping on your back may not be the most comfortable position for some people, but it is the best way to protect your hair after a keratin treatment. 

When you sleep on your side or stomach, your hair can become matted and tangled. This can lead to breakage, which defeats the purpose of the treatment.

Keep Hair Dry

Keeping hair dry is one of the most fundamental things you should remember when caring for keratin treated hair. Wet hair is more susceptible to breakage and damage, and can also cause the treatment to not work as effectively. 

As you get ready for bed, be sure to gently blot your hair with a towel after washing, and avoid laying on your hair while it’s damp.

Keep Your Room Cold

Maintaining a cold (not freezing) room temperature can help you keep your hair from frizzing. 

If you have the option, use a humidifier in your room to help lock in moisture and protect your strands while you sleep.

Hair with Silk or Satin Pillowcases: Which One Should You Choose?

There’s one more important thing you need to do in order to maintain your results: sleep on a silk or satin pillowcase.

Here’s why: when you sleep on a regular cotton pillowcase, your hair rubs against the fabric and can become frizzy. 

But when you sleep on a silk or satin pillowcase, your hair slides across the fabric, preventing frizz and helping your keratin treatment last longer.

Now, you may be asking, which is better: silk or satin pillowcases?

Well, that all depends on your hair type. If you have fine hair, silk is going to be better because it doesn’t absorb as much moisture. 

On the other hand, if you have thicker hair, satin will work better because it’s more durable. Additionally, satin is more of a type of weaving than a fabric. 

It’s also more affordable since it’s often mixed with polyester. If you’re on a budget or are looking for a more affordable option, go for satin.

Both options are smooth and gentle on your hair, which helps to keep frizz at bay and prevents your hair from getting tangled while you sleep.

Here are my choices for silk and satin pillowcases for your keratin treated hair:

MYK Silk Pure Natural Mulberry Silk Pillowcase

Made of 100% pure mulberry silk, the MYK Silk Pure Natural Mulberry Silk Pillowcase is smooth and soft to the touch. 

Keeps hair healthy and frizz-free 


  • Pure silk,
  • Hypoallergenic and antimicrobial
  • Machine washable

It doesn't absorb moisture from your hair or skin like cotton pillowcases can.


Slip Silk Queen Pillowcase

Slip's pillowcase is made of the highest quality silk, so it's no surprise that it's on my list. Not only does it feel amazing, but it also helps to reduce tangling and friction between your hair.

Preserves your Brazilian blowout and its effectiveness


  • Anti-bedhead,
  • Oeko-Tex certified
  • Naturally hypoallergenic

Slip also offers skin benefits, particularly anti-aging properties. It reduces sleep creases and wrinkles, and it can also help with acne.


Allied Essentials Silk Serenity Pillowcase

This silk pillowcase from Allied Essentials is made of 100% pure silk and is designed to help you get a good night's sleep. 

Minimizes friction on hair and boosts sleep experience


  • 100% silk,
  • Top-tier smoothness
  • Thermoregulation properties

Allied Essentials’ Silk Serenity pillowcase comes in the colors: Ivory, Blush, Navy, and Silver.


Bedsure Satin Pillowcase

For satin pillowcases, you'll want to try Bedsure's pillowcase, which is made of 100% polyester satin that is smooth to the touch. 

Helps maintain natural oils on scalp to reduce dryness and hair tugging


  • 100% polyester satin,
  • Fade and wrinkle-resistant
  • Machine washable

Unlike other satin pillowcases that feel stiff and slippery, this one stays smooth all night long, providing you with the gentle care your hair needs.


Kitsch 100% Satin Pillowcase

The Kitsch 100% Satin Pillowcase is made of high-quality charmeuse silk, and is designed to minimize friction and protect your hair from breakage. 

Reduces breakage and damage to scalp.


  • Made from high-grade, smooth microfiber,
  • Keeps your hairstyle looking great for longer
  • Prevents hair from tangling and breaking while you sleep

It's also hypoallergenic and machine-washable.


ShopBedding Luxury Satin Pillowcase

Avoid skin and hair creases with ShopBedding's luxury satin pillowcase! This charmeuse satin fabric is smooth to the touch, creating a gentle glide over your hair and skin. 

Prevents hair matting, tangling, snagging, and breakage


  • 100% woven polyester,
  • Wrinkle-free
  • Stain-resistant

ShopBedding's pillowcase is also great for those with sensitive skin as it helps to reduce facial wrinkles.


Hair After Keratin Treatment: How to Take Care of Your Hair

Here are additional tips to help you take care of your hair after keratin treatment:

Hands Off

Avoid touching your hair after a keratin treatment. You don’t want to transfer any oils from your hands to your hair, which can undo all the hard work that was just done.

Moreover, using your fingers to comb your hair may also lead to frizz and breakage. 

So, it’s best to use a wide-tooth comb or paddle brush when detangling your hair after a keratin treatment.

Hydrate with Hair Masks

After treatment, your hair will have an imbalance with its protein and moisture levels. A quality hair mask will help to hydrate your hair.

Look for masks that contain ingredients such as Shea butter, olive oil, or coconut oil. Use a hydrating hair mask once or twice a week to keep your hair healthy and deep conditioned.

Use a Smoothing Brush

A smoothing brush helps to distribute the keratin evenly throughout your strands, which leaves your hair looking smooth and sleek. 

Be sure to use gentle strokes when brushing your hair after a keratin treatment – you don’t want to damage your newly treated locks!

Straighten Morning Creases or Wrinkles

A woman is using a hair iron to straighten her hair.

While applying heat to your hair isn’t recommended, using a flat iron on low heat can help to smooth out any morning creases or wrinkles in your hair. 

This way, you reduce the risk of permanent creases and breakage. Be sure to use a heat protectant before using a hair straightener.

Stay Away from the Beach (and Pools)

Pools and the sea contain harsh chemicals that will interact with the keratin treatment. As much as possible, avoid these places for the first few weeks after having a Brazilian blowout.

Avoid Sulfate and Salt-Laden Products

Similarly, you should look for high-quality shampoos and conditioners that are developed specifically for keratin-treated hair

These products might be more expensive than your usual variety, but they’re worth the investment to maintain healthy, vibrant hair, even after treatment.

FAQs: How to Style Your Keratin Treated Hair + More

Can I Sleep on My Hair After Keratin Treatment?

The short answer is yes, but there are a few things you should keep in mind to ensure that your hair is healthy and stays looking its best.

It’s important that you don’t sleep with your head on a pillow directly after getting the treatment.

The heat from your body can actually cause the keratin to re-activate, which can lead to frizz and undo all of the smoothing benefits of the treatment. 

Instead, try sleeping on a silk scarf or using a silk or satin pillowcase.

Do I Need to Sleep on My Back With My Hair Spread Straight?

No, you don’t need to sleep on your back with your straight hair billowing over your head. 

You can sleep however you want, but we recommend that you keep your head elevated on a pillow with silk or satin pillowcase to avoid crushing your hair.

On the other hand, if it makes you feel less anxious, you can definitely sleep on your back with your hair spread out!

What makes Slip so good? 

Slip is a popular silk pillowcase brand that’s often recommended to people with frizzy hair, as it can help keep your hair smooth and prevent breakage. The fabric doesn’t seep moisture from your hair.

The primary benefit of Slip pillowcases is that they reduce friction and tangles on your hair.

How Do You Shower After a Keratin Treatment?

You can shower normally after a keratin treatment, but you should avoid using any harsh shampoos or conditioners. 

Instead, use products that are specifically designed for treated hair. Also, avoid hot water, as it can strip away the treatment.

Another thing to remember is to get your hair wet just enough. Don’t oversaturate it with moisture.

How Do I Style Keratin Treated Hair?

Avoid tight hairstyles that could pull on the keratin treated strands and cause them to break. Air dry whenever possible or use a diffuser on low heat if necessary. 

When using hot tools, be sure to use a heat protectant beforehand. Try to avoid overdoing it on the styling and give your hair a break in between heat treatments.

Conclusion: Changes in Sleep After Keratin Treatment

It is no secret that keratin treatments have become extremely popular in recent years as a way to achieve smooth and shiny hair. 

However, what many people don’t realize is that these treatments can actually change the way you sleep! 

Hope you learned something new and that these tips will help you enjoy your keratin-treated hair for longer.

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