Free Mattress Size Finder
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The most common US size — great for couples and guest rooms.
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By the numbers
Real dimensions you can check before you buy — not just mattresses.
| Size | Dimensions (W × L) | Surface area | Best for | Where to buy |
|---|---|---|---|---|
| Twin | 38″ × 75″ | 19.8 sq ft | Kids, single sleepers, small rooms | SaatvaNectarHelix |
| Twin XL | 38″ × 80″ | 21.1 sq ft | Taller singles and dorm rooms | SaatvaNectarHelix |
| Full | 54″ × 75″ | 28.1 sq ft | Solo adults who want extra room | SaatvaNectarHelix |
| Queen | 60″ × 80″ | 33.3 sq ft | Couples and guest rooms — most common US size | SaatvaNectarHelix |
| King | 76″ × 80″ | 42.2 sq ft | Couples who want maximum space | SaatvaNectarHelix |
| Cal King | 72″ × 84″ | 42.0 sq ft | Tall sleepers — longer, slightly narrower | SaatvaNectarHelix |
| Piece | Typical dimensions | Notes | Where to buy |
|---|---|---|---|
| Loveseat | 52–72″ W × 38″ D | Comfortable seating for two | Shop on Wayfair → |
| 3-seat sofa | 78–88″ W × 38″ D | Standard living-room sofa | Shop on Wayfair → |
| Coffee table | 48″ L × 24″ W · 16–18″ H | About two-thirds the sofa's length | Shop on Wayfair → |
| Dining table (4) | 36–40″ W × 48″ L | Seats four | Shop on Wayfair → |
| Dining table (6) | 36–40″ W × 60–72″ L | Seats six | Shop on Wayfair → |
| Nightstand | 18–28″ W · 24–28″ H | Aim for mattress-top height | Shop on Wayfair → |
| Room | Common rug size | Notes | Where to buy |
|---|---|---|---|
| Living room (large) | 9′ × 12′ | All furniture legs sit on the rug | Shop on Wayfair → |
| Living room (medium) | 8′ × 10′ | Front legs on the rug | Shop on Wayfair → |
| Bedroom (queen) | 8′ × 10′ | Extends past both sides of the bed | Shop on Wayfair → |
| Bedroom (king) | 9′ × 12′ | Frames a king bed | Shop on Wayfair → |
| Dining (seats 6) | 8′ × 10′ | Chairs stay on when pulled out | Shop on Wayfair → |
| Hallway runner | 2.5′ × 8′ | Leave a border on each side | Shop on Wayfair → |
| Screen size | Recommended distance (4K) | Typical use | Where to buy |
|---|---|---|---|
| 43″ | 3.5–5.5 ft | Bedrooms and small spaces | Shop on Amazon → |
| 50″ | 4–6 ft | Apartments, medium rooms | Shop on Amazon → |
| 55″ | 4.5–7 ft | Most living rooms | Shop on Amazon → |
| 65″ | 5.5–8 ft | Larger living rooms | Shop on Amazon → |
| 75″ | 6.5–9.5 ft | Big, open rooms | Shop on Amazon → |
| 85″ | 7–11 ft | Home-theater setups | Shop on Amazon → |
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