King Bed Mattress Dimensions: How Big Is a King Size Bed?

If someone had to ask you what the dimensions of your bed were, would you know? Would you know what the dimensions of a king bed are and what the benefits of sleeping on a king bed can bring? Even though this information is not often common knowledge, it does become important when looking for a bed that will fit your sleep requirements and your lifestyle. And it is equally important when wanting to create a comfortable and stylish bedroom environment.

In this blog, we explore the dimensions of a king-size bed and answer common questions like "what size is a king-size bed?" and "how big is a king-size bed in centimetres?" Armed with this knowledge, you can make informed decisions about the perfect bed for your sleep sanctuary.

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A standard king-size bed, often referred to as a "king," is a popular choice for those seeking ample space to stretch out. There are two differing dimension “types” when it comes to king beds, namely:

• Standard Length – 188cm long x 183cm wide
• Extra Length – 200cm long x 183cm wide

In South Africa, we refer to the extra length king bed as such but in America, it is affectionately termed the “California King”. To choose between a standard king and a California king, consider your room size and personal preferences. The standard king and extra length king or California king both offer 183cm of width, making them ideal for couples who appreciate extra space to move around. However, the extra length king mattress is longer, making it a better fit for taller individuals. Ensure your chosen bed size harmonizes with your room dimensions and provides the comfort and style you desire.

When it comes to selecting the perfect king-size bed, understanding its dimensions goes beyond merely choosing a piece of furniture. It becomes a pivotal decision in curating your sleep sanctuary. A king-size bed, with its generous proportions, offers a sense of luxury and space that can transform your bedroom into a haven of relaxation – giving you that perfect ‘holiday bed’ experience in the comfort of your home.

Tip #1 – before you set your heart on a king size bed, make sure you have measured your room and the entire bedroom space to make sure it can fit in comfortably with all of your other necessary furniture like bedside tables, chest of drawers, chairs, couches etc.

A standard king-size bed typically measures approximately 183cm in width and 188cm in length, providing ample room for both you and your partner to stretch out comfortably. It's crucial to take precise measurements of your room to ensure your king-size bed fits snugly without overwhelming the space.

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While considering king bed dimensions, it's also essential to be mindful of weight recommendations. King-size bed bases are designed to support the weight of the mattress, and the individuals sleeping on it. It's advisable to check the weight capacity of the mattress and bed base to ensure it can comfortably support the load. This precaution ensures the longevity of your bed and prevents any structural issues over time.

Tip #2 – Every bed manufacturer will have a weight recommendation for every model of bed they make. When shopping online or in store, make sure you ask what the weight recommendation is for the bed you’re interested in - to ensure that it suits your requirements.

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Choosing the right bed is crucial for a good night's sleep and overall well-being. Here are some practical tips to help you make an informed decision:

• Size Matters: Consider the size of the bed based on your needs and the available space in your bedroom. Make sure the bed fits comfortably in your room without overcrowding.
• Mattress Support and Comfort: The mattress is a key component. Choose one that provides adequate support for your body while also being comfortable. Mattresses come in various types, such as VertiCoil®, Pocket Spring System, Double offset spring system, Zoned Pocket Spring System, Foam, etc.
• Firmness Level: The ideal firmness of a mattress can vary based on personal preference and sleeping position. Some people prefer a firm mattress for better support, while others may find a medium, or softer mattress more comfortable.
• Consider Your Sleeping Position: Your preferred sleeping position can influence the type of mattress and pillow you need. For example, side sleepers might benefit from a softer mattress to cushion their hips and shoulders, while back or stomach sleepers may prefer a firmer surface for proper spinal alignment.
• Bed Height: Consider the height of the bed, especially if you have mobility issues or prefer a specific bed height for aesthetic reasons. A lower bed might be easier to get in and out of, while a higher bed can provide additional storage space underneath.
• Budget Considerations: Set a budget before shopping and stick to it. While it's essential to invest in a quality bed for a good night's sleep, there are options available at various price points.

Now that you have a clear understanding of king-size bed dimensions, you can confidently choose the perfect bed for your bedroom. Whether it's a standard king or a extra length king, your bed should provide both comfort and aesthetic appeal, ensuring a restful and stylish night's sleep.

Browse our full range of King beds and mattresses online or visit one of our 77 stores nationwide.

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