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Bedding Size Chart — Duvets, Covers, Sheets, Pillowcases & More

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.

Mattress Dimensions

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

Duvet & Comforter Sizes

Our duvets are made generously oversized so they drape over the sides of the mattress.

Size Inches (W × L) Centimetres (W × L)
Twin 68 × 88 173 × 224
Double / Full 88 × 88 224 × 224
Queen 90 × 96 229 × 244
King 104 × 96 264 × 244
California King (oversized) 110 × 100 279 × 254

Duvet Cover Sizes

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 68 × 88 173 × 224
Double / Full 88 × 88 224 × 224
Queen 90 × 96 229 × 244
King 104 × 96 264 × 244
California King (oversized) 110 × 100 279 × 254

Sheets & Fitted Sheets

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

Pillow Sizes

Size Inches (W × L) Centimetres (W × L)
Standard 20 × 26 51 × 66
Queen 20 × 30 51 × 76
King 20 × 36 51 × 91

Pillowcase Sizes

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

Mattress Pads & Toppers

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

Frequently Asked Questions

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 90 × 96" / 229 × 244 cm) fits a standard Queen mattress with good drape. 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.