Giant beds: XL, emperor, Alaskan king and family beds

Kasper Bladt-Laursen

Kasper Bladt-Laursen

Co-owner, FamBed

· 5 min read

Giant beds: XL, emperor, Alaskan king and family beds

Giant bed, XL bed, extra-wide bed, king size, emperor bed and Alaskan king bed. These terms are often used for beds that offer extra space, but they do not necessarily mean the same thing. Some refer to a fairly standard size, while others simply indicate that the bed is larger than a standard double. Always check the actual dimensions rather than relying on the name alone. This is particularly important if the bed needs to accommodate a family, fit into a specific room or pass through narrow doorways and staircases.

Many names for an extra-large bed

XL bed and giant bed are broad descriptions with no single international standard size. King-size dimensions vary between markets and manufacturers, while emperor and Alaskan king usually refer to more specific sizes. What sets a family bed apart is that its name primarily describes its purpose: an extra-wide bed for co-sleeping. It can be configured in several sizes to suit the number of adults and children. The key question is therefore not only what the bed is called, but how wide and long it actually is and how the space will be used.

Sizes and key differences at a glance

The comparison below provides a simple overview of dimensions, uses and practical considerations:

  • King size and XL bed: These terms do not refer to a single standard size worldwide. In Europe, 180 × 200 cm is often used as a reference size for a king-size bed, but you should always check the manufacturer's specifications.
  • Emperor bed: The typical UK size is 200 × 200 cm. Some retailers offer versions measuring approximately 210 to 215 cm in both width and length. For two adults, a width of 200 cm provides approximately 100 cm each.
  • Alaskan king: This North American size measures approximately 274 × 274 cm, equivalent to 108 × 108 inches. For two adults, that provides approximately 137 cm of width each, although its generous length also requires considerable floor space.
  • Family bed: Typical modular sizes range from 240 to 360 cm in width and from 200 to 220 cm in length. Examples include 240 × 200, 270 × 210, 300 × 200, 300 × 210 and 360 × 210 cm.

Width and length meet different needs

A very long bed is not automatically the best option for a family. An Alaskan king offers almost equal space in both directions, which may appeal to very tall people or make a striking feature in a large bedroom. For co-sleeping, however, width often makes the biggest difference. Children and adults usually sleep side by side, so extra centimetres across the bed may be more useful than the same amount of space at the foot. Consider both your family's needs and the shape of the room before choosing a size.

A scalable family-bed solution

A family bed typically combines two or three mattresses on a shared wooden frame. This modular design lets you choose a width that suits your family without requiring one enormous mattress. Individual modules are also easier to manoeuvre through doorways, around staircases and into the bedroom. Mattresses, covers and mattress toppers can be replaced separately as your family's needs change. Some solutions even let you keep and extend your existing bed, so you only have the extra width for as long as you need it.

  • 240 cm: Can accommodate two adults and one very young or smaller child for shorter periods.
  • 270 cm: Gives two adults and one or two children more everyday space.
  • 300 cm: Gives two adults and two children a more generous level of comfort.
  • 360 cm: Designed for families who want exceptional width and plenty of freedom to move.

These measurements are examples, not guarantees that a particular size will suit every family. Sleeping habits, the children's ages and each person's space requirements also play a part. As a practical starting point, allow around 90 cm per adult and 60 cm per child, then adjust based on your family's experience.

Bed linen, delivery and bedroom space

The more unusual the size, the more important accessories and delivery become. Emperor beds often require British-size bed linen. Alaskan King beds usually require custom-sized sheets, a custom mattress topper and a suitable frame. A modular family bed can use several mattresses as its foundation, while a custom-sized sheet or one-piece mattress topper can create a more unified sleeping surface. FamBed offers family beds and accessories in sizes developed specifically for this type of configuration.

  • Measure the room's width and length, allowing space for doors, wardrobes and walkways.
  • Check doorway widths, stairs, landings and tight turns before delivery.
  • Check whether the mattress, frame and mattress topper are delivered in one piece or as separate modules.
  • Make sure suitable sheets and other accessories are available before choosing an unusual size.

Which giant bed is right for you?

The right choice depends on who will be sleeping in the bed and how you plan to use the room:

  • For couples looking for extra space: A king-size or emperor bed may be sufficient, provided its exact dimensions suit the room.
  • For maximum length and square proportions: An Alaskan king offers plenty of space, but places significant demands on room size, delivery and specialist accessories.
  • For co-sleeping with children: A family bed is often the most purpose-built option, as you can choose a width to suit your family size and adjust it later using modules.

Look at the dimensions, not the name

The best giant bed is not necessarily the one with the most impressive name. It is the one that gives you the right amount of space, fits through your home and works for everyday life. Emperor and Alaskan king beds are clearly defined formats, each with their own strengths, while XL and king-size beds require a closer look at the dimensions. For families looking for a bed for co-sleeping, a modular family bed offers a scalable solution, from an extra-wide double bed to a complete wall-to-wall bed.

Co-sleeping news, tips, tricks and guides 💌

Sign up for a series of emails packed with valuable guides and practical tips and tricks for better co-sleeping and better sleep overall for babies, toddlers and parents.