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Envelope Pillow Case vs Zipper Pillow Case: Which is Best for you?

Frankly, it’s rare for anyone to focus on the design of pillowcase closure and it’s easy to see why. By the time you’re crawling back to bed the most important thing is to make yourself comfortable for sleep.

The truth is that your sleep can only be more comfortable if your pillow lives up to its full purpose. For that reason, you might want to consider getting an envelope pillowcase or zipper pillowcase.

What is an Envelope Pillowcase?


As the name implies, an envelope pillowcase takes after the closure of an actual envelope. As compared to traditional pillowcases which feature open ends, envelope pillowcases keep your pillow securely tucked in the envelope closure. As such, it’s hard for your pillow to slip out of the pillowcase when sleeping.

Envelope Pillow Case
Envelope Pillow Case

What is a Zipper Pillowcase?

A zipper pillowcase has a zip that encloses the pillow in turn keeping the pillow securely intact. With this type of pillowcase, you have an option to either choose a hidden or exposed zip.

More often than not, most manufacturers and customers embrace the hidden zip design owing to its final appearance. If so, you want a neat, seamless finish, then you might want to consider it.

All in all, zipper pillowcases are also ideal for huge pillows as well as irregularly shaped pillows.

Zippered Pillowcase
Zippered Pillowcase

When To Use a Zipper Pillowcase and Envelope Pillowcases

Here is what you need to know as you try to make an informed decision on these two. If you constantly move when sleeping, it’s better to select a zipper pillowcase.

Why you might ask?

A zip provides an extra and secure seal regardless of the movements. The only con with this pillowcase design is that the zipper might come off if not carefully handled.

On the other hand, an envelope pillowcase will be ideal if you have a fat pillow. This way, your pillow can easily stay intact. However, with an envelope pillowcase, there’s a higher chance of your pillow sliding outside the case during sleep as compared to a zipper pillowcase.

Comparison Between Envelope Pillowcase and Zipper Pillowcase

Zippered Silk Pillowcase
Zippered Silk Pillowcase

Not much needs to be said.

Envelope pillowcases and zipper pillowcases are two distinct pillowcases. So let’s compare each of them below based on a couple of factors:

Aesthetics and Tidiness

While both envelope and zipper pillowcases enhance neatness in your bedroom, the zipper pillowcase takes the lead. With a zipper pillowcase, you are guaranteed no movements when sleeping and so the creases are minimized.

This not only keeps your pillowcase free from creases but also protects your face from sleep creases. Furthermore, having hidden zippers achieves a neat and seamless look for your pillows and room at large.

Not to say that envelope pillowcases are untidy, in fact, they are better than open-flap pillowcases. However, with the flaps in sight, the pillow and room aesthetics are slightly interfered with.

The Most Secure Closure

Zipper pillowcases tend to provide proper closure as compared to envelope pillowcases. You are guaranteed that your pillow will not slip out or be less likely to twist when sleeping.

Easier Usability

Time is of essence and so having a pillowcase that is hectic to put on ends up consuming a lot of time in the long run. Therefore, a pillowcase that provides more comfort with less demand will serve as the best choice.

As such, a zipper pillowcase is hands down the best at providing convenience when taking on and off. All you have to do is undo the zip and pull out the pillow as compared to envelope pillowcases which require extra unfolding of the flaps.

Allergen Protection

It is likely for allergens like dust, mold, and pollen among others to access the pillow. At the end of the day, you’re looking for a comfortable sleep and to protect yourself from contracting possible allergic reactions.

A zipper pillowcase is an ideal option owing to the fact that it is properly secured on all ends. As such, there are no open ends that could possibly allow allergens access into the pillow.

Versatility and Value for Money

Envelope Pillowcase
Envelope Pillowcase

You can easily flip your zipper pillowcase inside out and still use it. Still, you will not wake up with creases all over your face. On the other hand, if you decide to flip your envelope zipper, you are more likely to have creases on your face owing to the flaps.

For the record, both of these pillowcases provide good value for money. So really, it all narrows down to your personal preferences.

Advantages and Disadvantages of Zipper Pillowcases and Envelope Pillowcases

Before you consider ditching your open-ended pillowcases for zipper and envelope pillowcases here is a list of things to know:

Pros of Envelope Pillow Closures

  • Envelope pillowcases get rid of the use of a zipper which could potentially come off or cause harm.
  • They provide extra comfort as compared to the traditional open pillowcases.

Cons of Envelope Pillowcases

  • Envelope pillowcases are less aesthetically appealing. The outer flaps as well as the envelope closures are not visually appealing.
  • They are more likely to allow the absorption of allergens which might result in health complications.
  • Envelope pillowcases do not fully cover the pillow and thus there is a probability of it slipping out during sleep.

Pros of Zipper Pillowcases

  • Zipper pillowcases provide extra protection from allergic elements like dust, pollen, pet hair, and mold just to mention some.
  • With a zipper pillowcase, you are guaranteed a secure fit into the pillowcase. Your pillow stays intact regardless of whether or not you move frequently during your sleep.
  • Zipper pillowcases are also visually appealing providing a classic aesthetic to your space.
  • In terms of maintenance, you can easily take out your pillow from a zipper pillowcase.

Cons of Zipper Pillowcases

  • A zip is a mechanical part in a zipper pillowcase and so just like any other part, it’s prone to damage.
  • A zipper pillowcase requires extra care when handling it. You should not only do this to enhance durability but also to protect you from any minor injuries.
  • Exposed zippers are visually unappealing. This explains why hidden zippers are mostly preferred.


Having gone through this guide, you can tell that both of these pillows serve their purposes. However, the question remains,

Which pillowcase is the best?

To be honest, this majorly boils down to your personal preferences. Do you move a lot at night? Do you care more about aesthetics? Are you allergic? These are just some of the questions you might want to ask yourself to help you narrow down to what you really need.

All in all, both zipper pillowcases and envelope pillowcases are designed to comfortably provide neck and head support.

More Resources:

Envelope Pillowcases – Source: SINO SILK

Zippered Silk Pillowcases – Source: SINO SILK

One Stop Silk Product
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