Updated April 2026
Mattress Size Chart
All standard mattress dimensions, minimum room sizes, typical prices, and who each size is best for.
Complete Size Chart
| Size | Width | Length | Area | Min Room | Mid-Range Price |
|---|---|---|---|---|---|
| Twin | 38" | 75" | 2,850 sq in | 7' x 10' | $500 |
| Twin XL | 38" | 80" | 3,040 sq in | 7' x 10' | $600 |
| Full / Double | 54" | 75" | 4,050 sq in | 9' x 10' | $700 |
| QueenPopular | 60" | 80" | 4,800 sq in | 10' x 10' | $1,000 |
| KingPopular | 76" | 80" | 6,080 sq in | 12' x 12' | $1,300 |
| California King | 72" | 84" | 6,048 sq in | 12' x 14' | $1,400 |
| Split King | 76" | 80" | 6,080 sq in | 12' x 12' | $2,000 |
All dimensions in inches. Prices are approximate mid-range estimates as of 2026. Actual prices vary by brand, material, and retailer.
Visual Size Comparison
Twin
Full
Queen
King
Cal King
Scaled proportionally to actual dimensions.
Size Breakdown
Twin
38" x 75" | Min room: 7' x 10'
Mid-range price
$500
$200 – $1,200
The most common size for kids and guest rooms. Fits one adult comfortably.
Best for: Children, single adults, bunk beds, small rooms
Twin XL
38" x 80" | Min room: 7' x 10'
Mid-range price
$600
$250 – $1,400
Same width as Twin but 5 inches longer. Standard in college dorm rooms.
Best for: Tall teenagers, college dorms, adults in small apartments
Full / Double
54" x 75" | Min room: 9' x 10'
Mid-range price
$700
$350 – $1,600
Couples only have 27 inches each, narrower than a Twin. Not ideal for two adults.
Best for: Single adults wanting more width, older children
Queen
60" x 80" | Min room: 10' x 10'
Mid-range price
$1,000
$500 – $2,200
The most popular mattress size in the US. Each person gets 30 inches on a Queen.
Best for: Couples, single adults who want space, guest rooms
King
76" x 80" | Min room: 12' x 12'
Mid-range price
$1,300
$700 – $2,700
38 inches per person, same as each having their own Twin. Ideal for couples.
Best for: Couples who want personal space, families with kids or pets in bed
California King
72" x 84" | Min room: 12' x 14'
Mid-range price
$1,400
$750 – $2,900
4 inches narrower but 4 inches longer than a King. Not bigger, just differently shaped.
Best for: Tall adults (6'2"+), long narrow bedrooms
Split King
76" x 80" | Min room: 12' x 12'
Mid-range price
$2,000
$1,000 – $5,000
Two Twin XL mattresses side by side. Allows each partner to choose their own firmness.
Best for: Couples with different firmness preferences, adjustable bases
Price Range by Size
Budget = basic foam/innerspring. Mid = foam or hybrid with good reviews. Luxury = premium foam, latex, or adjustable.
| Size | Budget | Mid-Range | Luxury |
|---|---|---|---|
| Twin | $200 | $500 | $1,200 |
| Twin XL | $250 | $600 | $1,400 |
| Full / Double | $350 | $700 | $1,600 |
| Queen | $500 | $1,000 | $2,200 |
| King | $700 | $1,300 | $2,700 |
| California King | $750 | $1,400 | $2,900 |
| Split King | $1,000 | $2,000 | $5,000 |