Mattress Sizes
Bedding & Linens · 8 specs
Direct Answer
Standard mattress dimensions governed by the International Sleep Products Association (ISPA) establish universal residential bedding sizes. Spanning Twin (38×75"), Full (54×75"), Queen (60×80"), Eastern King (76×80"), and California King (72×84"), sizes coordinate precisely with bed frames and fitted sheets.
Source: ISPA (International Sleep Products Association) / 16 CFR Part 1633 · Last reviewed Aug 28, 2026
Specs
| Governing Standards | ISPA / 16 CFR Part 1633 (Federal Flammability) |
| Crib Mattress | 28 × 52 inches (71 × 132 cm) | Standard toddler beds |
| Twin (Single) | 38 × 75 inches (96.5 × 190.5 cm) | 2,850 sq in |
| Twin XL | 38 × 80 inches (96.5 × 203.2 cm) | Standard university dorms |
| Full / Double | 54 × 75 inches (137 × 190.5 cm) | 4,050 sq in |
| Queen | 60 × 80 inches (152.5 × 203.2 cm) | 4,800 sq in (Most popular) |
| King (Eastern King) | 76 × 80 inches (193 × 203.2 cm) | 6,080 sq in (Equals 2 Twin XLs) |
| California King (Western) | 72 × 84 inches (183 × 213.5 cm) | 6,048 sq in (4" narrower, 4" longer than King) |
Standard Mattress Sizing Matrix
| Mattress Size Label | Dimensions (Inches) | Dimensions (cm) | Total Surface Area | Best Suited For |
|---|---|---|---|---|
| Crib | 28" × 52" | 71 × 132 cm | 1,456 sq in | Infants, toddlers, converted cribs |
| Twin | 38" × 75" | 96.5 × 190.5 cm | 2,850 sq in | Children, single sleepers, daybeds, bunk beds |
| Twin XL | 38" × 80" | 96.5 × 203.2 cm | 3,040 sq in | College dorm rooms, taller teens, split king bases |
| Full / Double | 54" × 75" | 137.0 × 190.5 cm | 4,050 sq in | Solo adults, guest bedrooms, compact apartments |
| Queen | 60" × 80" | 152.5 × 203.2 cm | 4,800 sq in | Couples benchmark: master bedrooms (10× 10 ft+) |
| King (Eastern) | 76" × 80" | 193.0 × 203.2 cm | 6,080 sq in | Couples wanting maximum width (38" per person) |
| California King | 72" × 84" | 183.0 × 213.5 cm | 6,048 sq in | Tall sleepers (>6 ft 2 in), narrow master bedrooms |
European & UK Mattress Equivalents
European and UK mattress sizes adhere to a standardized 200 cm (78.7 in) metric length:
- EU Single: 90 × 200 cm (35.4 × 78.7 in)
- EU Double: 140 × 200 cm (55.1 × 78.7 in)
- EU King: 160 × 200 cm (63.0 × 78.7 in)
- EU Super King: 180 × 200 cm (70.9 × 78.7 in)