How to choose the right mattress size

How To Choose The Right Mattress Size

One of the botch-ups when purchasing a new bed is choosing one that is too small. Regarding mattress sizes, larger is always preferable (as long as it fits in your room!).

If you’re still not persuaded that larger is better, we’re here to help you learn about the different mattress sizes with this simple mattress size guide so you can be confident you’ve chosen the best mattress fit.

Size does matter! Your mattress should be the right size for your sleeping needs, and some factors will influence the size of the mattress you need.

The sleeper’s age, height, weight, the size of the room, your budget, and the sleeper’s personal preferences all play a role in determining the size of your bed.

Considering characteristics such as whether you sleep with a partner, your height, and your body type, you may also choose from a variety of mattress sizes, ranging from a single-person twin-sized bed for when your child passes from a crib to an extra-wide California king for couples who prefer to spread out.

 Remember that some bed sizes will likely be more appropriate for you than others. In this mattress measuring guide, we look at the measurements of each bed size, from the most common to custom-made possibilities. Also, consider the bed frame. If you buy a mattress and a bed frame from different manufacturers, check the exact dimensions of both to ensure a size match.

How much bed space do you have?

The size of your bedroom is the most crucial factor to consider when selecting a new mattress. A large bed is excellent, but ensure you leave enough space to walk about your room comfortably. Of course, you can always put one side of the bed against the wall, but this can be inconvenient for couples sleeping together because one person will have to get on and off at the foot of the bed or crawl over the other.

Begin by noting the bed frame’s dimensions rather than the mattress’s size. Make careful to account for a headboard if there is one. Mark the frame’s footprint on the floor where you intend to install the bed. Make sure you have at least three feet to walk around the bed and the foot. Confirm that you have enough space to open any closet or armoire doors and drawers. Check to see whether you have nightstands that will fit. Finally, consider if you’ll be able to make the bed effortlessly.

You don’t want your space to seem cramped, nor do you want it to be cluttered. Instead, it should be a space where you can walk about freely and feel comfortable. If the room still feels tight, you may go one size down or consider purchasing a bed with storage below.

What is your preferred sleeping position?

Now that we’ve resolved the space issue, it’s time to consider you, the sleeper. While we’ll be delving into various elements related to you and your particular sleeping habit, the first thing to determine is what position you sleep in.

Though most individuals toss and turn at night, most prefer some positions over others. For example, perhaps you like to start on your back and roll over to your side. Or maybe you sleep mostly on your side and then finish the night on your stomach while hitting the snooze button. If you’ve never given much thought to your favorite sleeping positions, I’d advise you to pay close attention to how you sleep during the following week. You’ll probably discover that you’re a back sleeper, a side sleeper, a stomach sleeper, or a combination. This knowledge is critical since various types of sleepers prefer different mattresses.

Let’s set you on the road to the finest night’s sleep you’ve ever had. But, first, we discuss nine standard mattress sizes.

  1. Crib mattress dimensions

With a new baby on the way, you’ll most likely spend a substantial amount of time creating a nursery, which will need decisions on everything from paint colours to diaper storage. In addition to these aesthetic options, you’ll need to make some selections concerning the crib, where your child will spend most of their time.

Choosing a crib and the appropriate crib mattress size are essential considerations for your nursery’s appearance and your infant’s safety. 

The most common choice for most parents is a standard-sized crib. Standard cribs are substantially larger than small cribs, measuring around 28 inches by 52 inches.

While a standard (or regular) crib is frequently more expensive than a micro crib, the main advantage of a standard crib is that your child can use their baby bed for several years.

Many standard cribs can be converted into toddler beds, so you won’t have to buy a new mattress once your child figures out how to get out of their crib. However, if you want to change things up and get your child a fun toddler bed, you may buy a bed frame and utilize the same standard crib mattress.

Some specs to consider:

  • Dimensions: 27.5”x 52”  (70cm x 132cm)
  • Recommendations: Babies.
  • Minimum Room Size: 87″ x 82″
  1. Toddler mattress dimensions 

A toddler bed might be a terrific alternative if your child is ready to move out of their crib but isn’t quite prepared for a single bed. These beds are fun, safe, and comfy, making them ideal for that in-between time and allowing you and your child to sleep peacefully.

Toddler mattresses are often softer than Crib mattresses since they do not provide the same suffocation risk. Toddler mattresses are the exact sizes of double-sided mattresses for infants and toddlers and are a popular alternative for parents who don’t want to buy two beds that their children will quickly outgrow.

Some specs to consider

  • Dimensions: 27.5” x 52  (70cm x 132cm)
  • recommendations: Toddlers who have outgrown the crib 
  • Minimum Room Size: 87″ x 82″
  1. Junior mattress dimensions 

A junior mattress can be 60 inches long depending on the manufacturer, although they are usually conventional twin-bed sizes. Junior twin mattresses used to be as large as a toddler bed or crib-sized mattress, measuring up to 31 inches broad and 75 inches long. Older junior mattresses were around 66 inches long, making them ideal for a youngster about 4 feet tall. Still, the Junior mattress is a suitable bridge for youngsters who have outgrown a Toddler bed but do not require the extra space that an adult-sized bed provides. In addition, junior mattresses are cost-effective for parents who do not want to invest in a Toddler bed.

Some specs to consider

  • Dimensions: 27.5” x 63”  (70 x 160cm)
  • Recommendations: Younger children.
  • Inexpedient: teenagers
  • Minimum Room Size: 99″ x 105″

4. Twin and single dimensions

The Twin mattress is the right size suited for most adults, giving the smallest amount of space for an adult to sleep comfortably. They are also an excellent choice for a children’s bed.

Twin beds are ideal for small areas with limited space or when two or more beds are required, such as a guest bedroom or vacation house. A twin is usually unsuitable for bigger people, those who prefer to sprawl out in bed, or those who toss and turn a lot.

Some specs to consider

  • Dimensions: 38.5″ x 74.5″  (98 x 189cm)
  • Recommendations: Children, single adults. Rooms with not a lot of space.
  • Minimum Room Size: 99″ x 105″
  1. Twin xl mattress dimensions 

The standard twin mattress comes in only one size variation: twin XL. It is the same width as a twin bed but 5 inches longer in length, for a total of 80 inches; this results in a surface area of 3,040 square inches.

A twin XL mattress is a fantastic choice for a child’s first bed, as it will last them far into adolescence. Most growth spurts can be accommodated by the extra 5 inches, and a young adult will most likely be able to transport their twin XL bedding to college. The majority of college dorms have twin XL bed frames and mattresses.

Some specs to consider

  • Dimensions: 38.5” x 79.5”  (98 x 202cm).
  • Recommendations: Children, tall single adults. Rooms with not a lot of space.
  • Inexpedient: Larger adults, couples.
  • Minimum Room Size: 104″ x 105″
  1. Full and double mattress dimension 

Full-size mattresses are an excellent middle ground between twin and queen-size beds. A full bed provides ample space for single sleepers and is a perfect choice for a guest bedroom.

A Full-size bed is ideal for a single adult who wants more space to spread out but does not require the extra size of a Queen.

It is also the smallest size appropriate for a pair; however, most couples would generally choose a Queen unless they love close-quarters sleeping, have limited room, or are both smaller than usual.

Some specs to consider:

  • Dimensions: 53.5″ x 74.5″  (136 x 189cm).
  • Recommendations: Single adults, small to average couples, couples who enjoy sleeping close.
  • Inexpedient: Larger couples.
  • Minimum Room Size: 114″ x 105″
  1. Queen mattress dimensions 

A Queen mattress is 60″W x 80″L, this is the most common mattress size right now, and it is a good match for single active sleepers, couples, and those who share a bed with children or pets. But, of course, it would be best to have a large bedroom to fit a Queen mattress properly.

Some specs to consider

  • Dimensions: 60” x 79.5” (152 x 202cm).
  • Recommendation: Most couples (most popular bed size).
  • Inexpedient: Couples with children or multiple pets who share the bed.
  • Minimum Room Size: 120″ x 110″

8. King mattress dimension 

Traditional king-size beds accommodate mattresses measuring 76 inches broad by 80 inches long. King mattresses are the most frequently offered on the market and the largest when measured in square inches. This magnificent size provides approximately the same room as two twin beds for two people. If you and your spouse have been sharing a queen or full mattress and need extra space to sleep comfortably, consider upgrading to the king of all bed sizes

Some specs to consider

  • Dimensions: 76” x 79.5 “  (193 x 202cm).
  • Recommendations: Couples who enjoy their own sleeping space, easily disturbed partners, couples with children and pets who share the bed
  • inexpedient: Rooms with not a lot of space.
  • Minimum Room Size: 136″ x 110″
  1. California king mattress dimension 

A California king mattress could be better if you’ve tried sleeping on a king-size bed, but your feet hang off the edge. California king-size mattresses are 73 inches wide by 83.5 inches long, making them somewhat narrower and slightly smaller overall than regular king beds, but the four additional inches of length make them suitable for anybody over 6 feet tall. A California King bed should fit easily in any bedroom greater than 10 feet broad by 12 feet long.

Some specs to consider

  • Dimensions: 73″ x 83.5 “(183 x 212cm)
  • Recommendations: Tall couples, couples who enjoy their own sleeping space, easily disturbed partners, couples with children and pets who share the bed
  • inexpedient: Rooms with not a lot of space.
  • Minimum Room Size: 132″ x 114″


If your mattress does not give adequate body support by promoting improper sleeping positions, it is the wrong mattress for you.

A proper mattress is essential for excellent back health. Finding the ideal mattress to offer you a good night’s sleep entails acquiring the appropriate support and the right amount of comfort. Many things influence back pain and how you sleep, but a decent mattress has to have a positive effect – and if you have the wrong mattress for you (or your once-suitable bed is now old and exhausted), you may be exacerbating your discomfort. It would be best if you replaced your mattress every 8 to 10 years. Make good bed choices!

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