What Size is a Single Mattress: Get a perfect size!

When choosing a mattress it is important to pick the size that best fits your needs and preferences.

Whether you choose a full, queen, or king-size mattress, if you don’t feel comfortable then it really isn’t the right choice for you.

One of the most highly recommended sizes is single mattresses because they are easy to move around, simple enough to store in small spaces, and are inexpensive when compared to other common UK mattress sizes.

If you’re looking for something bigger than a single bed but not quite big enough for two people then be sure to check on a small double bed.

Standard Bed and Mattress Sizes

Single Mattress

The single bed and mattress size is 3 feet wide by 6 feet long, perfect for a child’s bed.

It fits cribs and toddler beds perfectly and it is recommended you switch to a full or queen-sized mattress once your child can climb out of their crib.

It’s difficult for a child to get in and out of a full-sized bed when more space is needed.

Full Mattress

A full mattress measures 5 feet long by 7 feet wide, making it great for couples or people sharing a room together.

A standard double bed frame often has this same size but the two mattresses are pushed next to each other on the floor rather than one being placed on top of the other like bunk beds.

Queen Mattress

A queen mattress measures 60 inches by 80 inches, giving a good amount of space to move about and get comfortable.

It is also the recommended size for people who have various sleeping partners because it can be pushed next to other queen beds to create one large bed from two separate ones.

King Mattress

The king-size bed is 76 inches wide by 80inches long, offering enough room for even tall sleeping partners to stretch out during their sleep.

They are extremely heavy so they cannot be moved around too often without help from a person or a machine.

It’s best used as a guest bed rather than something you use every night because of its limited mobility due to its massive weight.

Super King Mattress

A super king-size bed measures 72 inches wide by84 inches long, making it a good choice for tall sleepers.

They are the same length as a standard king-size bed but they’re four inches wider which is perfect for tall people who can’t fit into other standard-sized beds.

Is a single mattress too small for an adult?

It’s recommended that an adult continue to sleep on a twin-sized mattress or move up to a full-sized mattress.

While it is possible for smaller adults and children to use a single mattress, the comfort and overall quality of their sleep may decrease because there just isn’t enough room.

Plus, mattresses are heavy and difficult for smaller people to move around without help from someone else.

Is a single mattress the same size as a twin?

A twin mattress is 3 feet wide by 6 feet long, the standard size for a child’s bed.

A single-sized mattress measures 3 feet wide by 6 feet long but it has a shorter height than other mattresses do.

It doesn’t provide enough room to move around comfortably or get in and out of bed without hitting your head on something because the height isn’t high enough.

What is the best size mattress for small spaces?

Smaller adults may choose to purchase a full-sized mattress because it provides more room than a single-sized one does.

Children can also use this size once they are no longer sleeping in cribs, however, the double mattress is effective if not better because they take up less bedroom space than two twin-sized ones do.

Choosing a single mattress: Things to consider

Since single mattresses are only 3 feet wide, they won’t take up much space in bedrooms that are small or even tiny.

This is the best mattress for kids who share a bedroom with their siblings because there isn’t enough room for separate beds.

Also, people who live in apartments may choose to invest in a single-sized mattress because it’s cheaper than buying two twins and placing them side by side on top of one another.

Frequency and length of use:

If you only use a single mattress on occasion and for short periods of time like when your friends or relatives visit, it isn’t necessary to invest in a high-quality one.

On the other hand, if you use it every night and all day long while you’re at home relaxing, make sure to purchase a thicker and more durable mattress such as an innerspring type because they offer better support than foam mattresses do.

Material preference:

The most common mattress types are innerspring, foam, and air. Innerspring mattresses provide the best support because they have a metal coil inside which helps maintain their shape throughout regular use year after year.

Foam mattresses aren’t as reliable but they’re good for people who have back problems because it’s firm so it feels like you’re sleeping on a hard surface rather than sinking into something soft that can cause aches to your body when you try to move around at night.

Air mattresses are pretty much deflatable so they don’t last as long as other types do but if you inflate them properly according to their directions, they may last up to two years before wearing down completely.


A single-sized mattress tends to be flatter and less firm than a twin because it only has one layer of padding.

A twin-sized mattress, on the other hand, has two layers so it’s thicker and more comfortable for two people to relax on at night.

The Pros and Cons of a Small Single Mattress Size


  • It may be smaller than other mattresses, but it doesn’t mean that a single-sized one can’t be comfortable and luxurious. In fact, there are some brands and styles of these mattresses which provide all the features and benefits of standard sizes such as coils for support and plush bedding so it feels softer under your body when you lie down on top of it.
  • Since singles are 3 feet wide by 6 feet long, they don’t take up much room in small spare rooms or apartments. A twin mattress is 36 inches by 75 inches, which is significantly bigger especially if you live in an area with limited space to offer.
  • The most frequent use of a single mattress is by children, teenagers, or young adults who don’t weigh as much yet. For this reason, singles tend to be thinner and lighter than bigger ones like queens and kings because they’re smaller in size and weight.
  • They’re cheaper so people on a budget can invest less money into one of these.
  • It’s quick and easy to buy a new single mattress without the hassle of going shopping inside large furniture stores or ordering online from specialty retailers. You can usually find them at department stores right when you walk through the front entrance so all you have to do is choose which one you want to take home with you that day.


  • Because singles are lightweight, they aren’t as durable and reliable as bigger bed sizes. People who weigh more than average for their height may find these flimsy and they may not last too long in comparison to standard mattresses.
  • They’re less comfortable than other types because they don’t have two layers of padding so it feels like you’re sleeping on the floor when you lie down. Even though there are plush options available, it doesn’t feel the same as when you sleep on a thicker type such as an innerspring.
  • Since singles are smaller than twins, they often slide apart or move across the bed frames while people are sleeping at night because there isn’t enough weight to keep them together securely throughout the night. If your mattress does this, constantly wake up to adjust and fix it.

How much does a single mattress cost?

A single mattress can cost anywhere from £30 to upwards of £100 depending on the model, brand, and design.

Because they’re lightweight, most manufacturers make these in bulk which reduces their costs so when you buy online or in stores like IKEA, Target, and Walmart, expect to pay a lower price for one of these compared to other mattresses.

What is the difference between a twin and a single mattress?

The most notable difference between a twin and a single mattress is the size. A twin measures 36 inches by 75 inches, which means it has more space than a single mattress which is 3 feet wide by 6 feet long.

Because both types come with one layer of padding, you don’t have to worry about feeling too hard or firm underneath your body when you lie down on top of these products.

1) Twin mattresses are for people who don’t weigh too much so they can easily move around at night without disturbing their partner who’s sleeping next to them.

They’re typically used by kids, teenagers, young adults, or couples whereas singles are usually designed for adults who are bigger in weight and height to enjoy full support from the bedding beneath them every night.

2) Twin mattresses are much wider which enables two people to fit comfortably on top of one another. This type is typically bought by siblings or couples who want to share a bed together without feeling too crowded.

3) The price of twin mattresses is usually twice as much as singles because they’re bigger in size and weight so companies have to use more materials when creating them.

Because they’re bulkier, twin mattresses are made with lesser quality materials because the company has to use less of it for each mattress that’s being manufactured during production runs.

Is a full-size mattress big enough for 2 people?

Full-size mattresses measure 54 inches by 75 inches which is big enough for two people to share without feeling too cramped.

They’re typically not as long as twin or single mattresses so everyone can fit snuggly on top of these products without their feet dangling over the edge of the bedding when they lie down.

What’s the most popular mattress size?

The most popular mattress size is the queen which measures 60 inches by 80 inches.

It’s bigger than a twin or single, but it doesn’t take up too much space in your bedroom so you have enough room to walk around without feeling boxed in by furniture and other household items.


If you’re looking for a sleeping solution for one person, there are plenty of different types to choose from today.

As long as you don’t weigh too much or plan on using your single mattress for years to come, investing in one at the correct size should be fine because it’s not like having two people lie down side by side on top of it.

Mattresses tend to wear out over time so if you invest in something basic and inexpensive, expect to buy another one around the same size when it comes time to upgrade or replace your current mattress.

Overall, singles are cheaper than bigger ones but they don’t last as long if you compare them equally based on their weight specifications.

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