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Mattress Sizes and Dimensions
Our mattress size guide outlines the different sizes of beds and their dimensions to help you find the bed size that best fits your needs.
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King Mattress Size
Size: 76” x 80” inch - 6.33 x 6.67 Feet - 193.04 x 203.2 CM
California King Mattress Size
Size: 72” x 84” inch - 6 x 7 Feet - 182.88 x 213.36 CM
Queen Mattress Size
Size: 60” x 80” inch - 5 x 6.67 Feet - 152.4 x 203.2 CM
Full Mattress Size
Size: 54” x 75” inch - 4.5 x 6.25 Feet - 137.16 x 190.5 CM
Twin XL Mattress Size
Size: 38” x 80” inch - 3.16 x 6.67 Feet - 99.06 x 203.2 CM
Twin Mattress Size
Size: 38” x 75” inch - 3.16 x 6.25 Feet - 99.06 x 190.5 CM
Mattress Size and Dimensions Chart
Understanding which mattress size is best for you
| Mattress Size | Dimensions in Inches | Dimensions in Feet | Dimensions in CM |
|---|---|---|---|
| King | 76” x 80” | 6.33 x 6.67 | 193.04 x 203.2 |
| California King | 72” x 84” | 6 x 7 | 182.88 x 213.36 |
| Queen | 60” x 80” | 5 x 6.67 | 152.4 x 203.2 |
| Full | 54” x 75” | 4.5 x 6.25 | 137.16 x 190.5 |
| Twin XL | 38” x 80” | 3.25 x 6.67 | 99.06 x 203.2 |
| Twin | 38” x 75” | 3.25 x 6.67 | 99.06 x 190.5 |
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King Mattress Size
Dimensions: 76” x 80”
A King size mattress is 76 inches wide and 80 inches long (193.04 cm x 203.2 cm). It’s best suited for couples or combination sleepers. Before buying the King size, compare it with other mattresses made for large families: King vs Queen, King vs Cal King, King vs Split King.
Best For
Couples who love to sleep with their families, combination sleepers or taller individuals.
Room Size
California King Mattress Size
Dimensions: 72” x 84”
A California King size mattress is 72 inches wide and 84 inches long (183 cm x 213.5 cm). It’s perfect for pet parents and an ideal choice for tall people. Before buying the Cal King size, compare it with other mattresses made for taller individuals: Texas King vs Cal King, Cal King vs Queen, Cal King Vs Alaskan King.
Best For
Taller people who enjoy having ample leg space or couples who love to snuggle their pets.
Room Size
Queen Size Mattress
Dimensions: 60” x 80”
A Queen size mattress measures 60 inches wide and 80 inches long (167 cm x 203.5 cm). It is the most popular choice of mattress size among couples. The queen size mattress is spacious despite being compact, and is an excellent choice for couples, single adults or adults with pets. Compare Queen mattress with other mattress sizes: Queen vs King, Queen vs Cal King, Queen vs Full.
Best For
Couples who love cuddling, a young child with a parent, or a single person with a dog.
Room Size
Full Mattress Size
Dimensions: 54” x 75”
A Full size mattress is 54 inches wide and 75 inches long (134.5 cm x 203.5 cm). This ideal bed size for individuals is also known as a double bed. It is a preferred choice for shorter people. Compare Full size with other mattress sizes: Full vs Queen, Full vs Twin XL, Full vs King.
Best For
Single parent with a child, young adults, teenagers or singles with pets.
Room Size
Twin XL Mattress Size
Dimensions: 38” x 80”
A Twin XL mattress is 38 inches wide and 80 inches long (96.5 cm x 203.5 cm). It is an ideal mattress size for people who love compact sleeping spaces and growing adults. If you are considering it for young adults, you can compare it to other mattress sizes: Full vs Twin XL, Twin XL vs Queen, Twin XL vs Split King.
Best For
Young adults, children up to 12 years of age, guest bedrooms, dorm rooms.
Room Size
Twin Mattress Size
Dimensions: 38” x 75”
Twin size mattresses are 38 inches wide and 75 inches long (96.5 x 188 cm). This mattress size is best for children and can be used on bunk beds. Plus, you can use safety rails on the side of the Twin bed so they won’t roll off the bed. Compare Twin size to other mattress sizes: Twin vs Twin XL, Twin vs Full.
Best For
Children 2-12 years old, or bunk beds.
Room Size
Things to consider before choosing a mattress
Several factors influence the best mattress size for you, including your budget, the dimensions of your bed frame, and how many people need to be accommodated. If you're still uncertain, take advantage of our 365-night trial period to ensure you find the perfect fit. Continue reading to discover more considerations to evaluate before making your final decision.
Teenagers & Single adults:
For growing kids, consider choosing a Twin XL, Full, or Queen mattress. These sizes provide ample legroom, ensuring there is sufficient space for comfortable stretching and accommodating their changing needs.
- queen
- Full
- twin xl
Couples:
Queen, King, and California King mattresses are the most popular choices among couples. These sizes offer ample space for both shared and individual comfort during sleep.
- queen
- king
- cal king
Children
A Twin, Twin XL, or Full size mattress is often preferred for children's bedrooms, as children tend to outgrow them quickly. These sizes allow children to stretch out fully during sleep, which supports their comfort and overall well-being.
- twin
- twin xl
- full
Adults with Pets or Children:
For adults with pets or children, choosing a larger mattress is essential for comfort and space. Queen, King, California King, and Full size mattresses offer ample room to ensure everyone can sleep comfortably, whether the bed is shared with children or pets.
- King
- cal king
- queen
- full
Crib Mattress Size
Dimensions: 28” X 50” | 2.33 X 4.16 Feet
Small Single Mattress Size
Dimensions: 30” X 75” | 2.5 X 6.25 Feet
Olympic Queen Mattress Size
Dimensions: 66” X 80” | 5.5 X 6.67 Feet
Split King Mattress Size
Dimensions: 38” X 80” | 3.25 X 6.67 Feet
Size of the Bedroom:
Imagine the joy of walking into your bedroom knowing that the King size mattress is awaiting you. But if as soon as you enter the room, it looks cramped and you stub your toe, it's no longer ideal. Hence, always have room dimensions in mind before buying your mattress. A wrong choice can make your room look too small or empty.
Body Weight and Height:
A medium firm mattress is usually recommended for most sleepers. Your unique height and weight will determine what mattress is best for you. If you wake up with aches or soreness, you could consult with a doctor to see what mattress might help.
Sleeping Position:
Your sleeping position and your mattress size go hand in hand. If you are a combination sleeper, then bigger mattresses are an ideal choice for you, if you like to snuggle, then compact mattress sizes are an excellent choice.
Budget:
Always know your budget before purchasing a mattress. The kind of materials use and the size you choose will impact the price of the bed. A larger sized mattress from a luxury brand will likely be more expensive.