If you have curly, coily or textured hair, you already know that the work does not stop when you go to bed. Wash days, twist outs, braids and carefully set curls can all be undone in one restless night on the wrong surface. Many South Africans with natural hair already protect it with a satin bonnet or scarf. A silk pillowcase is the other half of that routine, and for some people it is the simpler one.
Why Curly Hair Needs a Smoother Surface
Curly and coily hair has more bends along each strand than straight hair. Those bends are points where the outer layer of the hair, the cuticle, can lift and catch on rough surfaces. Natural oils also travel more slowly down a curl than down a straight strand, so curly hair is generally drier and more fragile.
Cotton is a textured fibre. As your head moves through the night, cotton grips at the hair and draws moisture from it. The common result is frizz, tangles, flattened curls and, over time, breakage. A silk pillowcase gives hair a smooth surface to glide across instead.
Understanding Type 4 Hair: 4A, 4B and 4C
Hair is commonly grouped into four main types: straight (type 1), wavy (type 2), curly (type 3) and coily (type 4). Type 4 hair, also called coily or kinky hair, has the tightest curl patterns and is common among South Africans with natural afro textured hair. It is usually divided into three subtypes. Most people have a mix of patterns on their head, so treat these as a guide and not a label.
- Type 4A: soft, springy coils with a clear S shaped pattern, roughly the width of a thin knitting needle. The curl is visible and defined, and the hair often looks full and bouncy when it is well moisturised.
- Type 4B: tight, sharp bends in a zig zag or Z shape, rather than smooth coils. The pattern is less defined than 4A, and the hair often shrinks noticeably when it dries.
- Type 4C: the tightest and most densely packed coils. The pattern is often hard to see without stretching the hair, shrinkage is typically the greatest, and the hair tends to be the most fragile and the most prone to dryness.
The tighter the coil, the more bends there are along each strand, the more places the cuticle can catch on a rough surface, and the harder it is for natural oils to travel down the hair. That is why type 4 hair, and 4C in particular, is generally the most vulnerable to dryness, tangling and breakage overnight. A silk pillowcase helps all three subtypes, and the smoother surface is especially worth having if your hair is 4B or 4C.
What a Silk Pillowcase Can Do for Curly Hair
- Less friction. Hair slides instead of dragging, which helps reduce tangling and frizz.
- Better moisture retention. Silk is gentler than cotton on the leave in conditioners, oils and creams you apply at night.
- Longer lasting styles. Twist outs, braid outs, wash and gos and stretched styles often hold their shape for longer when they are not being roughed up overnight.
- Gentler on edges and delicate hair. Smooth fabric is kinder to fine hair and the hairline.
- Less static. Natural silk is less prone to static than synthetic fabrics.
A silk pillowcase supports a good hair routine, but it does not replace one. It will not moisturise your hair for you, so keep up with your wash day, conditioning and sealing steps.
Pillowcase or Bonnet? Why Not Both
A silk or satin bonnet protects your hair all the way around, and it is a favourite for good reason. The problem is that bonnets slip off in the night, especially if you move around or sleep on your side. When that happens, your hair is lying directly on the pillow.
A silk pillowcase is the backup. If your bonnet comes off at 2am, your hair is still resting on a smooth surface. Some people use a bonnet for the best protection and a silk pillowcase as insurance. Others, especially those with shorter hair, short styles or loose waves, find a silk pillowcase alone is enough. Take a look at our silk bonnets if you want the full setup.
Protective Styles and Silk
If you wear braids, twists or other protective styles, a smooth pillowcase helps reduce frizz around the roots and along the length, which can help your style last longer between visits to the salon. The same goes for blowouts and silk presses: a smoother surface means less roughing up overnight.
Why 22 Momme Suits Curly Hair Routines
Silk pillowcases are sold in different weights, measured in momme, and every pillowcase we sell is 22 momme. Our momme guide explains the difference in full. For curly hair routines it makes sense, because a pillowcase that is in contact with oils, creams and leave in conditioners every night, and is washed regularly, benefits from a dense, durable silk.
Our silk care guide explains how to look after it, including how to keep hair products from building up on the fabric.
South African Climate and Curly Hair
Where you live changes what your hair needs. On the Highveld, dry winter air can leave curls parched and static prone. On the coast, humidity makes frizz harder to control. A smooth pillowcase helps in both situations because it reduces the friction that contributes to frizz and tangling. We cover this in more detail in our guide to silk pillowcases in South African weather.
Pillowcase Sizes
Standard South African pillows take a 45x70cm pillowcase, and king size pillows take 52x90cm. If you tend to toss and turn, the larger size gives your hair more smooth surface to land on. See our size guide for more.
Frequently Asked Questions
Is a silk pillowcase good for curly hair?
Yes. A silk pillowcase has a smooth surface that creates less friction than cotton, which helps reduce frizz, tangling and breakage in curly and coily hair.
Is a silk pillowcase good for type 4 hair (4A, 4B and 4C)?
Yes. Type 4 hair has tight coils that catch easily on rough fabrics and tends to be dry, so a smooth silk surface helps reduce friction, tangling and breakage. The benefit applies to 4A, 4B and 4C hair, and is especially worthwhile for the more fragile 4B and 4C textures.
What is the difference between 4A, 4B and 4C hair?
4A hair has defined S shaped coils, 4B hair has sharp zig zag bends with a less defined pattern, and 4C hair has the tightest, most densely packed coils with the most shrinkage and fragility.
Do I still need a bonnet if I have a silk pillowcase?
Not always. A bonnet gives all round protection but can slip off at night, while a silk pillowcase protects your hair even when it does. Many people use both.
Will a silk pillowcase stop my curls from frizzing overnight?
It can help reduce friction related frizz, but it will not prevent it altogether. Frizz also depends on moisture, products and humidity.
What momme silk is best for curly hair?
Every SILK.co.za pillowcase is 22 momme, a dense weight suited to nightly use and regular washing. It is the only weight we stock.
Does silk absorb my hair products?
Silk is generally gentler than cotton on the products you apply, but some product will transfer to any pillowcase. Washing it regularly keeps it fresh.
Give Your Curls a Smoother Night
Browse our 100% mulberry silk pillowcases at SILK.co.za, choose your size, and let your hair rest on a surface that works with your routine instead of against it.