What is the Best Mattress Size?

Mattress sizing

There’s nothing like a good night’s sleep. Waking up feeling rested and refreshed and ready to start the day is a priceless feeling. There are many factors that go into determining whether your sleep will be good or not, from your bedding to the light and sound that is coming into your room at night, to whether or not you sleep beside a partner and how well he or she sleeps. Another thing that also affects how well we sleep is the size of our mattress, and it’s important to make sure you are sleeping on the right sized mattress.

So, how do you know what the best mattress size for you is?

There are a couple of things to take into account when thinking about shopping for a new mattress, both logistical and personal preference.

Things like:

  • How big is your bedroom and your current bed frame, and are you ready and willing to upgrade your frame if you are changing your mattress size?
  • How do you like to sleep—on your side, stomach or back? Or perhaps much to the annoyance of your partner, you like to sleep like a starfish.
  • Do you toss and turn or are you a restful sleeper?
  • Do you sleep alone or do you share your bed with a partner?
  • How tall are you and how much do you weigh?

By knowing the answers to these questions, the closer you’ll be to figuring out which is the right mattress for you. And since mattress come in just a few standardized sizes, let’s now take a look at what the size options are from smallest to largest.


Twin Mattresses measure 38 x 74 ½” or 96.5 X 189 cm. They are often called single mattresses and are mostly ideal for small children. They are also great for bunk beds or day beds. As children grow up and have growth spurts however, they will eventually require more room to move around while they sleep.


A full mattress measures 53 x 74 ½” or 134.5 X 189 cm. Once a child becomes a teenager or is nearing that phase of their lives, they will likely be more comfortable sleeping on a full mattress. Once a full mattress is purchased, especially for a young adult, it will likely last them for as long as they are at home and then can work well as a guest bed after that.

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Queen mattress are measured to 60 x 79 ½” or 152.5 x 202 cm and are a good choice for two partners that sleep together. They are also good for smaller spaces or guest bedrooms. There are also many people who sleep alone who enjoy the space and comforts of a queen sized mattress. Queen mattresses are a popular option so there are many choices when it comes to firmness so you can find what works best for you.


A king sized mattress is 72 x 84″ or 183 x 213 cm. King mattresses are as big as they come so no matter how big you are or how you like to sleep, it is hard not to have a great night’s rest on this mattress size. They come in especially handy if you sleep with a partner and you both enjoy having enough space to move around. King mattresses have started to come in slightly variant sizes, either slightly smaller or larger than the standard one so there are options depending on your preference and the amount of space you have.

Getting a good sleep at night has far reaching health benefits that will last throughout the day. A good mattress that is the right size for you is an investment in your health and happiness. If you need more advice or have any questions, come to WR Mattress and let our staff help you find the mattress that is right for you.