Is The Hidden Zipper or Envelope Style Silk Pillow Case Better?
This question is so commonly asked and interpreted by those selling it to be what the have for sale at the time.
Lets talk to an expert, someone who knows and understands silk and is not repeating marketing fluff.
When customers walk in, they think they’re choosing between two fundamentally different pillowcases. They’re not. They’re choosing between two closure styles on the same core product: silk and in the case of our silk pillow cases 22 momme mulberry silk.
That distinction matters.
First, the real value: silk itself (not the closure) and the Momme. the higher the Momme the better the quality. Most pillow cases are 19momme at Silk.co.za we only use the finest quality 22 momme silk for quality and durability.
Before we even touch closures, understand this:
Silk reduces friction: less hair breakage, frizz, and tangling Silk is less absorbent: helps retain moisture in skin and hair Silk is smoother: less pulling on facial skin overnight
Classic flap design with no hardware—simple, durable, and widely preferred.
Pros
No hardware at all: nothing to snag hair or scratch skin More durable long-term: no zipper to fail or break Soft, uninterrupted feel: especially good for sensitive skin Easy washing: no mechanical parts to worry about
Cons
Pillow can shift slightly inside the case
Requires occasional adjustment
Only one “clean side” if the flap is noticeable
Sales reality:
This is what most repeat buyers stick with. It’s simple, reliable, and does the job.
Hidden Zipper Closure (The “Structured Look” Option)
Mulberry Silk Pillowcase with Hidden Zipper cheaper due to use of less silk.
Snug-fit silk pillowcase with concealed zipper for a tailored, secure finish.
Pros
Tight, secure fit: pillow stays perfectly in place Neater aesthetic: looks more “finished” or hotel-grade Double-sided usability: no flap side
Cons
Zipper wear and tear over time
Risk of snagging during washing
Quality varies massively between brands
Even “hidden” zippers still introduce a hard component into a soft product
Sales reality:
Customers often think this is superior, but it’s mostly about appearance and structure, not performance.
Hair & skin benefits: Identical Friction reduction: Same (silk surface) Moisture retention: Same Pillow stability: Moderaten for envelope, High for zipper Durability: Higher for envelope (no parts) Lower for zipper (zipper can fail) Maintenance: Easier for envelope More care needed Comfort feel: Slightly softer for envelope overall, Structure for zipper Aesthetic finish: Casual/luxury for envelope, Tailored for zipper
The Honest Verdict (What I tell customers)
If you’re buying silk for hair, skin, and overall sleep quality, here’s the truth:
Both are equally effective. Full stop.
There is zero scientific or practical advantage to having the pillow tightly bound in a zipper case when it comes to:
Skin wrinkles
Moisture retention
Friction reduction
Those benefits come from the silk fibres themselves, not how tightly the pillow is enclosed.
Let me make it practical:
If your hair is frizzing: silk helps (both types) If your skin is drying out: silk helps (both types) If you want fewer tangles: silk helps (both types)
Now ask yourself:
Does your hair care whether there’s a zipper 30cm away on the edge?
Of course not.
Final recommendation (no fluff)
Choose envelope closure if you want durability, simplicity, and comfort
Choose zipper closure if you want a neater, more structured look
But don’t fall for this idea that: “Zipper = better performance”
It doesn’t.
It’s like putting your mattress in a tighter fitted sheet and expecting better sleep quality. The surface is what matters, not how tight the corners are.
We have also expanded our range of silk hair bonnets with two different designs: the Standard Silk Hair Bonnet with elastic and the Adjustable Silk Hair Bonnet with tie.
Once again, the important distinction is the design rather than the silk. Both are made from premium 22 Momme Mulberry Silk, giving your hair the same smooth, low-friction surface while you sleep.
The Standard Silk Hair Bonnet
The standard bonnet is designed for simplicity.
It features an elastic opening that allows the bonnet to be put on quickly and comfortably before bed. Once positioned, the elastic helps keep the bonnet in place while you sleep.
This is an excellent choice if you want a straightforward nighttime hair-care routine without having to adjust or tie the bonnet.
It is particularly convenient for everyday use. Simply gather your hair, place the bonnet over it and you’re ready for bed.
The smooth Charmeuse silk helps reduce the friction that can occur when hair rubs against bedding during the night. This can help minimise frizz, tangling and breakage while helping hair retain more of its natural moisture.
For someone who wants simple, effective and effortless, the standard elastic bonnet is difficult to beat.
The Adjustable Silk Hair Bonnet with Tie
The adjustable bonnet takes a slightly more personalised approach.
Instead of relying solely on an elastic opening, the bonnet incorporates a tie that allows you to adjust the fit according to your preference.
This makes it particularly useful for people who want more control over how securely their bonnet sits. You can loosen the tie for a more relaxed fit or adjust it to help keep the bonnet securely positioned during the night.
It is also an attractive option for people with different hair volumes or hairstyles who prefer the flexibility of being able to alter the fit.
The adjustable design doesn’t mean compromising on the silk. Like the standard bonnet, it uses 22 Momme 100% Mulberry Silk, with the same luxurious Charmeuse surface.
Which Silk Bonnet Should You Choose?
Again, there is no right or wrong choice. It depends on how you prefer to wear your bonnet.
Choose the Standard Silk Bonnet if you want:
Quick and easy application
A simple elastic fit
An uncomplicated bedtime routine
A traditional bonnet design
Easy everyday use
Choose the Adjustable Silk Bonnet if you want:
Greater control over the fit
An adjustable tie
The ability to loosen or tighten the bonnet
A more personalised fit
Flexibility for different hair volumes and hairstyles
Both designs provide your hair with the key advantage of sleeping against premium Mulberry Silk rather than a rougher, more absorbent fabric.
Whichever design you choose, the quality of the silk should be the first consideration.
Momme is a measurement of silk fabric density. While 19 Momme silk can be perfectly good quality, 22 Momme provides a denser and more substantial fabric. It offers a combination of luxurious weight, durability, lustre and longevity that makes it particularly suitable for products used every night.
This is why SILK SA doesn’t offer multiple silk grades simply to create different price points.
Our philosophy is simple: uncompromising quality.
Our pillowcases and bonnets are made from 100% Mulberry Silk, 22 Momme, 6A Grade, with a Charmeuse weave. The result is a smooth, naturally lustrous fabric that feels luxurious against your skin and hair.
The Choice Is Yours
The introduction of the hidden zipper pillowcase and adjustable bonnet gives you more choice without changing what matters most: the quality of the silk.
For pillowcases, choose between the classic simplicity of the envelope closure or the secure, structured finish of the hidden zipper.
For bonnets, choose the easy, uncomplicated fit of the standard elastic bonnet or the personalised fit of the adjustable tie bonnet.
Whichever combination you choose, you’re getting the same SILK SA commitment to premium materials and craftsmanship.
100% Mulberry Silk. 22 Momme. Premium quality. No compromises.
