What size silk duvet cover should you choose? Complete guide by bed type
What size silk duvet cover should you choose for your bed? The basic rule is simple, but silk has a few specificities that are useful to know. Here's the complete guide, size by size.
The basic rule: cover = duvet
A duvet cover should have exactly the same dimensions as the duvet it contains. This is the same logic as for a silk pillowcase that should match the pillow. A cover that is too small compresses the duvet and creates wrinkles; a cover that is too large allows the fabric to float and the duvet to shift during the night. To choose, follow the chain: mattress → duvet → cover.
Size chart by bed type
| Bed Type | Mattress | Cover | Overhang |
|---|---|---|---|
| Child bed | 70×140 | 100×140 | 15 cm |
| Single | 90×200 | 140×200 | 25 cm |
| Single (generous) | 90×200 | 200×200 | 55 cm |
| Double | 140×200 | 220×240 | 40 cm |
| Queen | 160×200 | 240×260 | 40 cm |
| King | 180×200 | 260×240 | 40 cm |
| Super king | 200×200 | 280×260 | 40 cm |
Depending on your bed
Single (90 cm): 140×200 for a fitted look, or 200×200 for an adult who moves around and likes a cozy effect — in silk, the 200×200 further enhances the drape.
Double (140 cm): 220×240 is the recommended standard, ensuring each person has enough duvet. If one person tends to pull the duvet, this size is definitely preferable.
Queen (160) and King (180): 240×260 for a queen, 260×240 for a king — or 280×260 for a more generous, hotel-like effect.
What silk changes
It doesn't shrink if well-maintained. Unlike cotton, Grade 6A silk washed at 30 °C does not shrink: no need to oversize.
The overhang makes a difference. The fluid drape of silk is enhanced by a generous overhang: aim for 40 to 50 cm on each side for a premium look.
Calculating the overhang
Overhang = (cover width − mattress width) ÷ 2. Example: 240 cover on a 160 mattress → (240 − 160) ÷ 2 = 40 cm on each side. Allow 15–25 cm for a fitted look, 30–40 cm for everyday use, 40–50 cm for a generous effect (recommended for silk).
Common sizing mistakes
- Cover too small — wrinkles and compressed duvet, the worst aesthetic mistake with silk.
- One size up "just in case" — unnecessary for well-maintained silk; the duvet shifts.
- Confusing bed with mattress — measure the mattress only, not the bed base.
- Forgetting mattress thickness — for mattresses over 30 cm, plan for a slightly longer overhang.
Frequently Asked Questions
A 220×240 cm cover for two sleepers (40 cm overhang on each side), or 200×200 cm if you sleep alone.
No. A cover that is too large allows the duvet to shift during the night. The rule: cover = duvet, same size.
Not if it's washed at a maximum of 30 °C on a delicate cycle, without a tumble dryer. No need to oversize.