Mattress and Bedding

Bed Size Calculator

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Bed Size Calculator

Find the perfect bed size based on your height, sleeping style, and whether you’re sharing the bed. Get personalized recommendations for the most comfortable sleep experience.

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Average adult height is between 63-70 inches (5’3″ – 5’10”).

Important Bed Size Facts

  • The average person moves 40-60 times during sleep, so adequate space is essential for quality rest.
  • Two people sharing a full/double bed each have only 27″ of personal space—less than a baby in a crib.
  • A California King is 4″ longer but 4″ narrower than a standard King bed, making it better for taller individuals but less ideal for couples who need width.
  • The most popular bed size in the United States is the Queen, accounting for nearly 50% of all mattress sales.
  • Twin beds were originally created for hotels to maximize space while providing separate sleeping areas.
  • King-sized beds provide each sleeper with the same amount of personal space as a Twin bed.
  • The average lifespan of a quality mattress is 7-10 years regardless of size.
  • Eastern King (standard King) and Western King (California King) names originated from regional preferences in the US.
  • Oversized beds beyond California King exist but require custom bedding and frames.
  • Mattress dimensions can vary slightly (up to 1-2″) between manufacturers, especially for imported beds.

Factors Affecting Bed Size Choice

Factor Description
Sleeper Height People over 6′ tall should consider beds that are at least 80″ long (Twin XL, Queen, King, California King).
Sleeping Position Side sleepers generally need less width than stomach sleepers who often spread out. Back sleepers fall somewhere in between.
Sharing the Bed Couples should ideally have at least a Queen size, while families who co-sleep might need a King or larger.
Room Size The bed should occupy no more than 60-70% of the available floor space to allow for comfortable movement and other furniture.
Body Size Larger individuals may need wider beds for comfort, regardless of whether they sleep alone or with a partner.
Sleep Movement Active sleepers who toss and turn need more space to move without disturbing a partner or falling off the edge.
Pets If pets sleep on the bed, additional width and/or length may be necessary for everyone’s comfort.
Accessibility Consider doorways, hallways, and staircases when planning for a new bed, as larger sizes can be difficult to move into some homes.
Sleep Quality Research shows that people who feel cramped in bed experience more sleep disturbances throughout the night.

Interesting Facts About Beds Around the World

  • In Japan, traditional futon beds are laid directly on tatami mat floors and stored away during the day to maximize living space.
  • European bed sizes differ from American ones, with “Double” beds often being smaller than their American counterparts.
  • In medieval Europe, most people slept on straw-filled mattresses on the floor, while the wealthy had elaborate four-poster beds.
  • The UK has its own sizing system where a “King” is closer to an American “Queen” and their “Super King” approximates an American “King”.
  • The world’s largest bed was built in the Netherlands and measured 86 ft × 53 ft (26.2m × 16.15m).
  • In Scandinavia, couples often use two twin mattresses side by side with a single fitted sheet, allowing each person to choose their preferred mattress firmness.
  • The ancient Egyptians invented raised beds to keep sleepers away from snakes, rodents, and cold floors.
  • The term “King-sized bed” wasn’t introduced until the 1960s, while Queen beds became popular in the 1950s.
  • The average person spends approximately 26 years of their life sleeping, making bed size an important long-term investment.
  • In China, harder beds are traditionally preferred, as they’re believed to be better for posture and overall health.

Bed Linen Size Calculator

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Bed Linen Size Calculator

Find the perfect size for your bed linens! This calculator helps you determine the ideal dimensions for fitted sheets, flat sheets, and bedspreads based on your mattress measurements.

Mattress Dimensions

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Draping Preferences

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Standard Bed Sizes

Bed Type Dimensions (inches) Dimensions (cm)
Twin/Single 39 × 75 inches 99 × 190 cm
Twin XL 39 × 80 inches 99 × 203 cm
Full/Double 54 × 75 inches 137 × 190 cm
Queen 60 × 80 inches 152 × 203 cm
King 76 × 80 inches 193 × 203 cm
California King 72 × 84 inches 183 × 213 cm

Bed Linen Shopping Tips

Tip Description
Thread Count Thread count indicates the density of threads per square inch. Higher isn’t always better—a good quality sheet typically has 200-800 thread count. Extremely high numbers can be misleading.
Material Choice Consider the climate and your preferences: cotton is breathable and easy to care for, linen is durable and cooling, silk is luxurious and temperature-regulating, and polyester blends are affordable and wrinkle-resistant.
Weave Type Percale is crisp and cool, sateen is smooth and silky, jersey is stretchy and soft like a t-shirt, and flannel is warm and cozy for cold weather.
Pocket Depth Standard sheets fit mattresses 7-12 inches deep, deep pockets fit 13-17 inches, and extra deep pockets fit 18-25 inches. Always check your mattress depth before purchasing.
Care Instructions Look for easy-care instructions that match your lifestyle. Some high-end fabrics require special washing or ironing.
Seasonal Changes Consider having different sheet sets for summer and winter to maintain comfort as temperatures change.

DIY Bed Linen Tips

  • Pre-wash and dry all fabric before cutting to account for shrinkage.
  • Add 1-2 inches to your measurements for seam allowances when making your own linens.
  • For fitted sheets, cut rounded corners and add elastic to create the perfect fit.
  • Consider French seams for a professional, durable finish that prevents fraying.
  • Label your handmade linens with size information for easy identification when stored.
  • Use natural fiber thread (cotton with cotton fabrics, silk with silk fabrics) for best results.
  • Decorative elements like piping or embroidery should be positioned at least 3-4 inches from the edge for visibility when the bed is made.
  • For durability, reinforce corners and areas that experience the most wear.