Quick answer: bedding sizes
Find every Down Under Bedding size below — mattresses, duvets, duvet covers, sheets, pillows, pillowcases, and mattress pads/toppers — in both inches and centimetres. Duvets are cut generously larger than the mattress so they drape well; if you're between sizes or have a deep mattress, size up.
Please note: all sizes below are approximate and are given in both imperial (inches) and metric (centimetres). Exact dimensions can vary slightly by product and brand — always check the individual product page before ordering. The Glucksburg 850 runs larger than our standard duvets (Queen 92 × 96", King 108 × 96").
| Size | Inches (W × L) | Centimetres (W × L) |
|---|---|---|
| Twin / Single | 39 × 75 | 99 × 191 |
| Twin XL | 39 × 80 | 99 × 203 |
| Double / Full | 54 × 75 | 137 × 191 |
| Queen | 60 × 80 | 152 × 203 |
| King | 76 × 80 | 193 × 203 |
| California King | 72 × 84 | 183 × 213 |
Our duvets are made generously oversized so they drape over the sides of the mattress. The Glucksburg 850 is cut larger than our standard duvets — see its product page for exact sizing.
| Size | Inches (W × L) | Centimetres (W × L) |
|---|---|---|
| Twin | 64 × 88 | 163 × 224 |
| Double / Full | 78 × 88 | 198 × 224 |
| Queen | 88 × 90 | 224 × 229 |
| King | 102 × 90 | 259 × 229 |
| California King (oversized) | 110 × 100 | 279 × 254 |
Duvet covers are made to match the duvet sizes above so your duvet fits snugly inside its cover.
| Size | Inches (W × L) | Centimetres (W × L) |
|---|---|---|
| Twin | 64 × 88 | 163 × 224 |
| Double / Full | 78 × 88 | 198 × 224 |
| Queen | 88 × 90 | 224 × 229 |
| King | 102 × 90 | 259 × 229 |
| California King (oversized) | 110 × 100 | 279 × 254 |
Our sheet sets come in the standard mattress sizes above. Fitted sheets are made with deep pockets of up to 17 inches (43 cm) to fit thick modern mattresses and toppers — always include any topper when measuring your mattress depth.
| Set size | Fits mattress (inches) | Fits mattress (cm) |
|---|---|---|
| Twin | 39 × 75 | 99 × 191 |
| Double / Full | 54 × 75 | 137 × 191 |
| Queen | 60 × 80 | 152 × 203 |
| King | 76 × 80 | 193 × 203 |
| California King | 72 × 84 | 183 × 213 |
| Size | Inches (W × L) | Centimetres (W × L) |
|---|---|---|
| Standard | 20 × 26 | 51 × 66 |
| Queen | 20 × 30 | 51 × 76 |
| King | 20 × 36 | 51 × 91 |
Pillowcases are made slightly larger than the pillow for an easy fit. Standard and Queen pillows both fit a standard/queen case; King pillows need a King case.
| Size | Inches (W × L) | Centimetres (W × L) |
|---|---|---|
| Standard | 20 × 30 | 51 × 76 |
| Queen | 20 × 34 | 51 × 86 |
| King | 20 × 40 | 51 × 102 |
Our mattress pads and toppers come in the standard mattress sizes above, with stretchy deep skirts to fit thick mattresses.
| Size | Inches (W × L) | Centimetres (W × L) |
|---|---|---|
| Twin / Twin XL | 39 × 75 / 39 × 80 | 99 × 191 / 99 × 203 |
| Double / Full | 54 × 75 | 137 × 191 |
| Queen | 60 × 80 | 152 × 203 |
| King | 76 × 80 | 193 × 203 |
| California King | 72 × 84 | 183 × 213 |
Are these sizes exact? No — all sizes are approximate and can vary slightly by product and brand. Check the individual product page for that item's exact dimensions, in both inches and centimetres.
What size duvet do I need for a Queen bed? A Queen duvet (about 88 × 90" / 224 × 229 cm) fits a standard Queen mattress with good drape. Our Glucksburg 850 runs larger at Queen (92 × 96"). Size up to King if your mattress is deep or you prefer more overhang.
Is California King bigger than King? It's longer but narrower — Cal King is 72 × 84" (183 × 213 cm) vs King at 76 × 80" (193 × 203 cm). They are not interchangeable, so check before ordering covers and sheets.
Will your sheets fit a deep mattress? Yes — our fitted sheets have deep pockets up to 17" (43 cm). Measure your mattress including any topper.
Still unsure? Contact our team and we'll help you choose the right size.