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Ultimate Guide to Mattress Sizes

July 04, 2023 4 min read

Considering a hybrid mattress for your next bed purchase? With a combination of innerspring and foam or latex materials, hybrid mattressesoffer a unique blend of comfort, support, and durability. However, one crucial factor to consider is the size. This comprehensive guide will walk you through the standard, non-standard, and custom sizes of hybrid mattresses, including both American and European sizes.

The History of Mattress Sizes in the US

Historically, most beds in the US were "twins" or "doubles". However, in the mid-1940s, manufacturers introduced larger mattresses, which were later standardized as "queen" and "king". These sizes made a significant impact on the market in the 1950s and 60s, providing more space for sleepers and catering to families' evolving needs.

What Factors Should I Consider When Choosing a Mattress Size?

When buying a new mattress, consider several factors to determine the ideal mattress size:

  1. Room Size: Measure the length and width of your room to determine what size mattress can comfortably fit. Consider the dimensions of the bed frame and other furniture within the room as well.
  2. Number of Sleepers: A full-size bed may be adequate for a single sleeper, but it can get cramped for two people or with pets. If you frequently share your bed with children or pets, consider a king-size or larger bed.
  3. Sleepers' Sizes: For average-sized adults, a queen-size mattress is usually adequate. However, for those who like to move around or are bigger and taller than average, a king or California king may feel more comfortable.
  4. Sleeping Positions: Even if you identify as a back, side, or stomach sleeper, most people are combination sleepers. Consider how much room you may need to move around or spread out at night when picking a bed size.
  5. Mattress Price: Generally, larger mattresses are pricier. When you size up your mattress, remember you'll also need to buy a new bed frame and sheets to accommodate the extra inches.

Standard Hybrid Mattress Sizes

Twin Size Hybrid Mattress

  • Dimensions (Approximate): 38" x 75" (96.5 cm x 190.5 cm)
  • Ideal for children, single adults with limited space, or guest bedrooms.

Twin XL Hybrid Mattress

  • Dimensions (Approximate): 38" x 80" (96.5 cm x 203.2 cm)
  • Extra 5" in length compared to a standard twin; a popular choice for taller individuals or those who need more legroom.

Full Size Hybrid Mattress

  • Dimensions (Approximate): 54" x 75" (137 cm x 190.5 cm)
  • Provides more width than a twin or twin XL, making them a good option for single adults or couples with limited room.

Queen Size Hybrid Mattress

  • Dimensions (Approximate): 60" x 80" (152.4 cm x 203.2 cm)
  • For couples, a queen size only offers 30" of sleep space per person, which is actually less than a twin size width.

King Size Hybrid Mattress

  • Dimensions (Approximate): 76" x 80" (193 cm x 203.2 cm)
  • Provides ample room for couples who like to stretch out or share their bed with pets or children.

California King Hybrid Mattress

  • Dimensions (Approximate): 72" x 84" (183 cm x 213.4 cm)
  • Slightly narrower but longer than a standard king, a popular choice for taller individuals or those with narrow and long bedrooms.

Non-Standard Sizes

The following table includes dimensions of less common mattress sizes:

Size Dimensions (inches) Dimensions (centimeters)
Crib 27.5 × 52 70 × 132
Junior 27.5 × 63 70 × 160
Cot or Small Single 30 × 75 76 × 191
Antique Single 36 × 72 91 × 183
Twin XXL 37.5 × 83.5 95 × 212
Antique Double or Three-quarter 48 × 72 122 × 183
Full XL or Double XL 53.5 × 79.5 136 × 202
Super Queen, Olympic Queen, Expanded Queen 66 × 80 168 × 203
California Queen 60 × 83.5 152 × 212
Super King, Grand King, Athletic King, Texas King 80 × 98 203 × 249
Wyoming King 84 × 84 213 × 213
Alberta King or Alaskan Queen 96 × 96 244 × 244
Alaskan King 108 × 108 274 × 274

A Note on Size Variation: As you shop for a new mattress, keep in mind that exact mattress dimensions can vary slightly from the sizes listed above. Many steps in mattress construction are still performed by hand, introducing potential variations in sizing from one mattress to the next. Different manufacturers may have different acceptable tolerance ranges for these variations. Depending on the mattress manufacturer, deviations of 1 inch or more may still be within their acceptable tolerance. This is quite normal and does not compromise the comfort and performance of the mattress.

European Sizes

European mattress sizes differ from those in the U.S. For example, a European single mattress measures approximately 90 cm x 200 cm, while a double size is roughly 140 cm x 200 cm. European king mattresses are generally about 160 cm x 200 cm. Always check the specific dimensions when purchasing a mattress internationally or for a bed frame from another country.

Custom Sizes: DLX Mattress

At DLX Mattress, we understand that one size doesn't fit all. Whether you have a uniquely shaped room, a custom bed frame, or prefer a non-standard size, we can build a hybrid mattress to fit your needs. Simply reach out to our team to discuss your custom size requirements.


Choosing the right size hybrid mattress is essential for a good night's sleep. Whether it's a standard size like twin, queen, and king, or unique options like 3/4 beds and Olympic queens, or even European sizes, this guide should help you understand what's available. Remember, DLX Mattress can accommodate your needs with custom sizes, ensuring your new hybrid mattress is the perfect fit for you.

For any further questions, don't hesitate to contact us. We're here to help you navigate the world of hybrid mattresses.