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Kids Beds Buying Guide


Buying a bed for yourself is easy, but when choosing a bed for your children there are lots of factors to take into consideration: style, size, safety features and how long it's actually going to last.

In this Happy Beds Kids' Bed Guide, were going to talk about everything from cots to sleep stations to help you choose the perfect bed for your little ones.

Kids' Bed Size Chart

When considering which bed size is best, we always advise choosing a mattress size and bed frame that leaves enough room for your child to grow. This will maximise the lifespan of the product and not leave your children in an unsuitable bed for a lengthy period of time.

If you are unsure of where to start, take measurements of your child's bedroom to get a rough idea of the space available to you. After that, consult the mattress size chart below to find the perfect bed size.

While you may not be in the market for a new mattress, using mattress size is the best way to pick the right bed size for your child. We have included a recommended age range too, but every child is different, so these age ranges may differ slightly.

Mattress or Bed Type Mattress Size (WxL) Recommended Age Range
Cot 1'9" (60 cm, 21") x 3'9" (120 cm, 47") 0 - 2 years
Toddler Bed/Cot Bed 2'3" (70 cm, 27") x 4'6" (140 cm, 55") 2 - 4 years
Small Single Bed 2'6" (76 cm, 30") x 6'3" (190 cm, 75") 4 years and up
Single Bed 3'0" (90 cm, 35") x 6'3" (190 cm, 75") 4 years and up
European Single Bed 3'0" (90 cm, 35") x 6'6" (200 cm, 78") 4 years and up
Small Double Bed 4'0" (120 cm, 47") x 6'3" (190 cm, 75") 8 years and up

While the toddler bed age range and cot bed age range are relatively set in stone, each child will transition to a "big kid's bed" at different times. It's not unfamiliar for a child to transition to a small single or a single bed before the age of 4, for example.

In fact, transitioning to a new bed is a big moment in a child's life. to make the process easier - and to find the averages ages of transition - take a look at 'Transitioning Your Child to a New Bed: The Essential Guide'.

If you're set on a mattress and bed size but you're confused about which mattress type is the best for your little one, then read our in-depth blog 'How To Choose the Right Mattress for your Child'.

Types of Kids Beds

There are various types of kids’ beds on the market, each with unique qualities to appeal to a specific age group and style preference. Here are the main children’s beds available at Happy Beds:

Cots and Cot Beds

Cots are ideal for newborn babies thanks to their protective railing. They are the safest place for a newborn to sleep, and they leave plenty of room for them to grow.

Cot beds only fit cot mattresses. While each product varies a little in size, our cot mattresses will fit each safely and securely. Many cot beds are designed so they can change into a toddler bed too, which is great for transitioning.

Toddler Beds

Toddler beds are ideal for your child's first proper bed. They are smaller in size but leave plenty of room for a child to sleep soundly, as well as having a full complement of safety features.

Toddler beds exclusively use toddler mattresses. While each bed frame can vary a little in size, this mattress will fit them perfectly.

Bunk Beds, Triple Sleepers and Quadruple Sleepers

Bunk beds provide multiple sleeping spaces combined, available as standard bunks, triple sleeper bunk beds or quadruple sleeper bunk beds. These types of children's beds are suitable for bedrooms of more than one child.

It's very important to keep the bunk bed age range in mind. Children under the age of 6 should not be allowed on the top bunk, and those aged under 3 should not be on a bunk bed at all.

If you want to learn more about bunk bed safety, then read our detailed blog on the subject 'What You Need To Know About Bunk Bed Safety'.

We stock bunk bed options in small single, single, European single, small double and double sizes.

Bunk bed frame sizes can vary on a product-by-product basis, so always read the instructions carefully before purchase.

Low Sleepers, Midsleepers and High Sleepers

Low sleepers, mid sleepers and high sleepers are children's beds combined with storage features, available in a range of heights and suitable for children and pre-teens. These beds can come with a combined desk, and are also sometimes referred to as sleep stations.

These sleepers are excellent for saving space. Plus, since they usually use a single mattress, they can fit into the majority of bedrooms. We also stock options for European single mattresses.

Cabin Beds

Cabin beds are usually a single bed combined with storage drawers or shelving and can come with or without ladders/steps.

There are a wide variety of cabin beds sizes on offer from single, to small double and even double if your child is a growing teen.

Themed Beds

Themed Beds are a unique design of children's bed, usually made to look like another item such as a racing car or house. Our theme beds come in toddler, single and European single sizes.

Bed Type Recommended Age Range
Cot/Cot Bed 0 - 2 Years
Toddler Bed 2 -4 years
Bunk Beds, Triple and Quadruple Sleepers 6 years and up
Low Sleepers 4 years and up
Mid and High Sleepers 6 years and up
Cabin Beds 4 years and up
Theme Beds 2 years and up if using a toddler theme bed, and 4 years and up for other variants

Choosing a Kids' Bed

Aside from how the bed looks, there are certain factors you need to think about before settling on that perfect children's bed.

Check the age restrictions on the kids bed first to ensure it's suitable for your child.

Although we have provided a guide above, this can vary on a product-by-product basis, so always read the detailed instructions under each listing.

Take into consideration your child's growth and leave enough room to accommodate this.

Consider including storage features to add convenience and space to their bedroom.

Check that the size of the kids bed is suitable for your home, and your child.

Measuring your child's bedroom is the most important part of buying them their first bed. Make sure you get it right with some top tips on how to maximise space in a kids' bedroom from a selection of UK mummy bloggers.

Frequently Asked Questions

Does Happy Beds sell any cots / beds for babies / toddlers?


Happy Beds has a limited selection of cot beds, though there’s an undeniable focus on quality over quantity. We offer fairly neutral designs to appeal to all homes and style preferences, with each cot, cot bed and toddler bed biding by strict safety guidelines.

How do I choose a baby cot?


It is best to choose a baby cot that’s both durable and secure. Guard rails and a stable frame are important for kids’ beds but they are absolutely essential for a baby cot. Most, if not all, baby cots will be built with high guard rails, though it may be worth searching for one with adjustable rails. This is because as your baby grows from a toddler into a small child they may require alterations to the cot, and it’s better to simply have one cot that can be adjusted, rather than have to consistently buy new ones.

What mattress do I choose for a baby cot?


Conventionally speaking a baby cot mattress has to be 140cm by 70cm to fit comfortably into a cot’s frame, though this rule of thumb doesn’t apply to all cots. In regards to the specific kind of mattress, as long as it isn’t firm or contain too rigorous springs, most types of mattresses should suffice. There are plenty of options to choose from, varying from natural fillings like coconut fibres and cotton to foam based foundations with pocket springs.

What size bed should I get for my child?


This really depends on the size and age of your child. A cot bed should suffice until your child is too large, or too easily able to climb the rails. Usually at the age of two or three your child should be more then capable of walking around and climbing, so this is the time to swap to a toddler bed. As your child grows older, sleep stations and single beds are more suitable to accommodate for further growth.

Further Kids Bed Guides and Advice