To make a blowout last overnight, let your hair cool completely, put it up loosely on top of your head with a soft tie or clip, add dry shampoo at the roots, and sleep on a silk pillowcase in a cool room. Those five habits can turn one blowout into three or four good hair days. Here is how to do each one, how to adapt it for curly hair and a silk press, what wears a blowout down fastest, and a two minute morning touch up.
How Long Does a Blowout Last?
Most blowouts last two to four days. Fine or oily hair tends to fall flat sooner, while thick, coarse or textured hair can hold its shape for up to a week. How you sleep makes the biggest difference, because one night of rubbing against cotton can undo an hour of styling.
How to Sleep With a Blowout in 5 Steps
1. Let Your Hair Cool Completely
Hair sets its shape as it cools. If you go to bed while it is still warm from the dryer, it takes the shape of your pillow instead. Give it time to cool fully, or finish with a blast of cool air.
2. Put It Up Loosely, High on Your Head
Gather your hair into a loose, high bun or ponytail at the very top of your head, sometimes called a pineapple. It keeps the lengths off the pillow and protects the volume at your roots. Use a silk scrunchie or a claw clip rather than a tight elastic, which leaves a dent. For thick or long hair, two loose buns spread the weight.
Want more volume and bend? Try two or three large rollers at the crown, or wrap the ends around a soft roller and pin it loosely. Short hair that will not reach a bun? Leave it loose and sweep it up over the pillow, or set the crown with a couple of large rollers.
3. Add Dry Shampoo at Night
Spray a little dry shampoo at the roots before bed rather than in the morning. It soaks up oil while you sleep, so you wake up with lift instead of flat, heavy roots.
4. Sleep on a Silk Pillowcase
Cotton has a textured surface that grips hair. Every time you turn over, it tugs on your blowout and roughs up the cuticle, which is where morning frizz comes from. Silk has a lower friction surface, so hair glides as you move. Less rubbing means less frizz, fewer kinks and a shape that holds. It also means less breakage over time.
Look for 100% mulberry silk rather than satin, which is usually polyester. Our guide to silk vs satin explains the difference. Sillo silk pillowcases are 22 momme Grade 6A mulberry silk with a hidden envelope closure, so there is no zipper to catch on your hair.
5. Stay Cool and Sleep on Your Back
Sweat at the roots is the fastest way to lose volume, so keep the bedroom cool and choose bedding that breathes. Silk is breathable and temperature regulating, which helps hot sleepers keep their roots dry. If you can, sleep on your back with your hair swept up over the pillow, so it is not crushed under your head.
How to Keep a Blowout by Hair Type
Every head of hair holds a blowout a little differently. Start with the five steps above, then adjust for your hair type.
Fine or Flat Hair
Fine hair loses lift fastest at the roots. Skip heavy creams and oils, use a loose high ponytail or two large rollers at the crown, and add dry shampoo at the roots before bed.
Thick or Long Hair
Split it into two loose buns so the weight does not pull the shape flat, and hold them with a claw clip or silk scrunchie instead of an elastic.
Frizz Prone Hair
Moisture is what turns a blowout frizzy. Make sure your hair is completely dry before bed, keep the room cool, and sleep on silk, which absorbs far less moisture than cotton. Our tips for frizz free hair go further.
Curly Hair or a Silk Press
Straightened curly and coily hair wants to return to its natural pattern, and sweat or humidity speeds that up. To keep a silk press or curly blowout overnight:
- Wrap your hair around your head and pin it, or set it in a few large pin curls.
- Cover it with a silk bonnet or scarf to hold the wrap in place.
- Sleep on a silk pillowcase as well, so your hair is still protected if the bonnet slips off in the night.
Our guides to silk pillowcase vs silk bonnet and silk pillowcases for natural curly hair go deeper.
What Wears a Blowout Down Fastest
- Steam and humidity: wear a shower cap and skip long, hot showers.
- Sweat: tie your hair up loosely for workouts and add dry shampoo after.
- Touching: oil from your hands flattens the roots, so keep your fingers out of your hair.
- Heavy products: skip oils and creams at the roots, especially on day one.
- Tight elastics: they leave dents that are hard to brush out.
- Cotton pillowcases: rubbing all night causes frizz and flat spots.
The Two Minute Morning Touch Up
- Take your hair down and let it fall naturally for a minute.
- Flip your head and shake out the roots with your fingers.
- Touch up only the bends that need it, with a round brush on low heat or a few passes of the straightener on low. Use a heat protectant first.
- Finish with a tiny drop of hair oil on the ends only.
Dr. Jessica Burgy MD on Sillo
Dr. Jessica Burgy MD, Board Certified Dermatologist and Science based Skincare Expert, on using Sillo:
"I have really enjoyed using Sillo silk pillowcases. They stay cool through the night, feel gentle on my skin, and I have noticed less frizz in my hair in the morning. The quality and overall experience have been excellent, and I would absolutely recommend them as part of a thoughtful hair and skin care routine."
Shop the Sillo Silk Pillowcase Set
Every Sillo set comes with two 22 momme Grade 6A mulberry silk pillowcases, so one is always ready while the other is in the wash. Silver ions help limit the buildup of impurities, and the silk is hypoallergenic, breathable and temperature regulating. OEKO-TEX certified and dermatologist endorsed. Each gift set includes a Sillo Care Washbag, free shipping and a 30 Night Trial. See all of Sillo's skin and hair benefits.
Shop the Light Champagne Silk Pillowcase Set
Frequently Asked Questions
How do I sleep with a blowout without ruining it?
Let your hair cool fully, put it in a loose, high bun with a silk scrunchie or claw clip, add dry shampoo at the roots and sleep on a silk pillowcase so hair glides instead of rubbing.
Does a silk pillowcase help a blowout last?
Yes. Silk has a lower friction surface than cotton, so there is less rubbing overnight, which means less frizz and fewer flat spots in the morning.
Should I sleep with my blowout up or down?
Up, if your hair is long enough. A loose, high bun or ponytail keeps the lengths off the pillow and protects the volume at your roots. Short hair can stay down on a silk pillowcase, swept up over the pillow.
How do I keep my blowout from getting frizzy overnight?
Go to bed with completely dry hair, keep the bedroom cool and sleep on a silk pillowcase. Silk has a lower friction surface and absorbs less moisture than cotton, the two biggest causes of overnight frizz.
Is silk or satin better for a blowout?
Both are gentler than cotton. Satin is a weave, usually made from polyester, while silk is a natural fibre that is breathable and temperature regulating, so it helps keep sweat away from your roots.
How long does a blowout last?
Usually two to four days. Fine or oily hair may need a touch up sooner, while thick or textured hair can last up to a week with dry shampoo and a silk pillowcase.
Should I wear a bonnet with a blowout?
A silk bonnet works well, especially for curly hair or a silk press. Pair it with a silk pillowcase in case the bonnet slips off during the night.
Can I work out after a blowout?
Yes, but sweat flattens the roots. Tie your hair up loosely, keep the workout cool if you can, and use dry shampoo afterward.
Can a silk pillowcase help reduce hair breakage?
Yes. Less friction means less tugging and tangling while you sleep, which helps reduce breakage over time. Our guide to silk pillowcases and hair breakage explains how.
The Wrap Up!
A blowout does not have to end the moment you go to sleep. Let it cool, put it up loosely, use dry shampoo at night, stay cool and rest on silk. A few small habits turn one great hair day into three or four.
