It sounds like a trick question with an upsell hiding behind it, so let us answer it straight. The right number of silk pillowcases is not “as many as possible”. It is a small, specific count that depends on how many pillows actually get used in your home.
The short answer
Two per pillow you use. One on the pillow, one clean and ready. A solo sleeper with one pillow needs two silk pillowcases. A couple on a double bed, two pillows, needs four. That is the whole rule.
Maison Veloura cuts those cases in two sizes: 50×70 (rectangular) and 65×65 (square). Same 19 momme mulberry silk. Pick the size that matches the pillow, then double it.
The rotation rule, explained
A silk pillowcase wants washing every three to four days. With a single case, that rhythm forces a choice: a bare pillow while it dries, the tumble dryer silk cannot survive, or stretching the time between washes. All three defeat the point of owning 19 momme mulberry silk.
Silk air-dries. That takes longer than a machine cycle. That is why the rotation matters. With two pillowcases it runs itself: swap, wash the used one on the next delicate cycle, and there is always a case on the bed. The settings are in our complete silk care guide.
How many by situation
Solo sleeper, one pillow: two pillowcases.
Couple on a double bed, two pillows: four pillowcases, two per side.
Guest room: two per guest pillow. Guests arrive irregularly; a clean case should still be ready.
Frequent traveller: add one that lives in the suitcase, in 50×70 or 65×65 to match the pillow you actually take, or to cover a hotel pillow you already measured.
Matching pairs on a double bed
On a double bed, buying the two sleeping pillowcases together is worth doing for reasons beyond symmetry. A matched pair gets washed together, so the two age at the same rate; buy the second one a year later and the difference in lustre will show side by side. A matched pair also makes the bed look intentional rather than assembled.
Same shade, same size, same 19 momme. Pearl White with Pearl White. Obsidian Black with Obsidian Black. The five shades are Pearl White, Sand Beige, Blush Pink, Obsidian Black and Platinum Silver.
Rectangular or square?
50×70 is the rectangular European pillow — the one most people sleep on in France, the UK and much of Europe.
65×65 is the square French oreiller, the sleeping pillow on many French beds. It is not a decorative extra we pretend to sell. We cut it.
Count the pillows you actually use, in the size they are. Then apply the rule: two cases per pillow. The size guide is Silk Pillowcase Sizes: EU vs US.
When to replace a silk pillowcase
The signs are visual: persistent snags in the weave, dull patches where the lustre has gone, seams starting to loosen. With a cool wash, a mesh bag, and a rotation, a 19 momme pillowcase can serve for years before showing any of them. When all three show up, replace that case and keep the spare in the rotation.
Frequently asked questions
Do both pillowcases on a double bed have to match?
Matching looks the most intentional. A considered mix works too: Obsidian Black with Platinum Silver, or Blush Pink with Pearl White. Keep the pair in the same palette and the bed still reads as designed.
Why do I need two when one seems enough?
Because silk air-dries rather than tumble-dries. Without a spare, the pillowcase is off the bed for most of a day every time you wash it. Washing every three to four days is what keeps the surface worth having.
Can I put a silk pillowcase in the guest room only?
Yes. Two pillowcases per guest pillow keeps one clean between visits.
Does the size change the count?
No. Two per pillow, whether that pillow is 50×70 or 65×65. Both sizes are the same price.
Build your rotation. Our silk pillowcases are 19 momme mulberry silk in 50×70 and 65×65, five shades, with free worldwide shipping.
