The three numbers that decide whether a set fits
- 108 × 108 in. Buy by inches. A 96 × 96 in version or a shorter one (108 × 80 or 108 × 84 in) takes different sheets.
- Pocket depth. It must clear the mattress plus any topper. Compare the pocket depth on the listing with the height of your mattress: a 12 in mattress with a 3 in topper needs a pocket of at least 15 in, more for an easy fit.
- What is in the set. A full set is a fitted sheet, a flat sheet and pillowcases. Some listings are the fitted sheet alone, which is why two prices can look far apart for the same size.
Sheet sizes: King against Alaskan King
| Size | Inches (W × L) | Centimeters | Surface | vs. King |
|---|---|---|---|---|
| King (Eastern King) | 76 × 80 in | 193 × 203 cm | 42.2 sq ft (3.92 m²) | — |
| California King | 72 × 84 in | 183 × 213 cm | 42 sq ft (3.9 m²) | -1% |
| Wyoming King | 84 × 84 in | 213 × 213 cm | 49 sq ft (4.55 m²) | +16% |
| Alaskan King | 108 × 108 in | 274 × 274 cm | 81 sq ft (7.53 m²) | +92% |
Every inch the mattress gains, the sheets need too: the fitted sheet of an Alaskan King covers 92% more surface than a King one. Pocket depth and comforter size for the 108 × 108 in mattress are covered in Alaskan King bed size.
Comforters and duvets
A comforter should hang over the edges (duvet or comforter: the difference). A bedding maker's rule of thumb (add 12 in to the length and 16 in to the width) gives about 124 × 120 in for an Alaskan King. Check the finished size on each listing: a comforter the size of the mattress leaves the sides bare. Every other size, from Twin up: comforter size chart.
The bed itself
We sell the Alaskan King firm foam mattress, the Alaskan King latex mattress and the Alaskan King platform bed frame, all made for 108 × 108 in. The full cost of a complete bed is on the Alaskan King bed price page.
Sheets for the other oversized sizes
The rule is the same, only the inches change: Wyoming King 84 × 84 in, Family Bed 120 × 80 in, Family Bed XL 144 × 84 in. See the chart of the biggest bed sizes, the Wyoming King bed or the Family Bed page.