Envelope, Housewife or Oxford? Pillowcase Styles Explained

By Snoozyn · Updated October 2026

Pillowcase styles come with a handful of words that are rarely explained: envelope, housewife, Oxford, flanged, open-ended. They describe two different things, how the case closes and how its edges look. Here is what each style means and which is easiest to live with.

Pillowcase styles at a glance

Housewife pillowcases

This is the classic British pillowcase. It is a plain rectangle sewn on three sides, with an extra pocket of fabric folded inside at the open end. You push the pillow into the closed end, then fold the pocket over the other end, and the pillow is held in with no fastenings at all. The edges are simply seamed, so the case sits close round the pillow with a clean, neat outline.

The name is old-fashioned, but it is still a very common style on UK bedding.

Envelope pillowcases

In most UK shops, envelope means the same internal flap as a housewife case; some brands use one word, some the other. A few use envelope for a different opening, where two panels of fabric overlap across the back, as on many cushion covers. If the description is unclear, look at the photo of the open end or check whether the case is described as having an internal flap or a back opening.

Oxford pillowcases

An Oxford pillowcase has a flat border of fabric, often called a flange, stitched round all four sides. The pillow sits inside a central panel, and the border lies flat around it like a frame. Most close with an internal flap, the same as a housewife case.

Oxford cases look tailored and a little formal, and they suit a bed made up with stacked pillows against a headboard, where the borders show. The trade-offs are practical: the case is bigger overall than the pillow, so it takes more room on the bed, and the border creases in the wash and needs ironing to stay crisp. We do not sell Oxford pillowcases, but they are widely available if you love the look.

Zip, button and open-ended cases

Zip

A concealed zip along the open end holds the pillow securely and gives a smooth finish. Close it before washing so the teeth do not snag other things in the drum. The zip is also one more part that can wear or break.

Buttons or poppers

Buttons are often a design feature as much as a fastening. They are slower to do up on changeover day and can work loose over many washes.

Open-ended

Common in the United States, an open-ended case is cut longer than the pillow and simply left open at one end. It is the quickest to put on but the pillow can slip partly out or show at the end.

Piping, trim and edging

Piping is a thin cord wrapped in fabric and sewn into the edge seams. It outlines the shape of the pillow and adds a crisp, finished detail, but it is not a closure and not the same as an Oxford border. A piped case can close with a flap, a zip or buttons. Ours closes with an envelope flap.

Which style should you choose?

• For ease: a housewife or envelope flap. Nothing to fasten, nothing to break, and nothing to catch in the wash.
• For a tailored, stacked look: an Oxford border, if you do not mind ironing.
• For a detail without the ironing: piping gives a defined edge on a plain case.
• For the most secure closure: a zip, though a deep flap does the job for most beds.

For how to get any of these on so the corners fill out, see how to put on a pillowcase.

Our pillowcases

Every pillowcase we sell closes with an envelope fold inside, with no zips or buttons, and our pairs come in standard 50 × 75 cm and king 50 × 90 cm. Plain Cotton in 200 TC percale is £12.90 a standard pair; Silky Cotton sateen is £22.90; Linen is £29.90; and Cloud Cotton with trimming, our piped style, is £29.90 a standard pair. Our pillowcase fabric guide compares the fabrics.

Frequently asked questions

What is a housewife pillowcase?

A plain pillowcase sewn on three sides with an internal pocket flap at the open end. You fold the flap over the end of the pillow to hold it in, so there are no buttons or zips.

Is an envelope pillowcase the same as a housewife pillowcase?

Usually, yes. Most UK shops use envelope for the same internal flap. A few use it for an overlapping back opening, so check the description or photos if it matters.

What is an Oxford pillowcase?

A pillowcase with a flat border of fabric, often around 5 cm, stitched round all four edges. It usually closes with an internal flap and gives a tailored, framed look.

Do Oxford pillowcases need ironing?

To look their best, yes. The flat border creases in the wash, so most people press it to keep the edges crisp.

Is piping the same as an Oxford border?

No. Piping is a thin fabric-covered cord sewn into the edge seams. An Oxford border is a flat band of fabric round the outside of the case.

Which pillowcase closure is easiest to use?

A housewife or envelope flap. There is nothing to fasten, nothing to catch in the washing machine, and it holds the pillow in well if the flap is deep.