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Mattress sizes: possible options

Our kids’ beds are available in different variants to accommodate various mattress sizes

Billi-Bolli children’s beds are available for a wide variety of mattress sizes, making it easy for you to find the ideal bed for your particular room, needs and wishes. This way you can take full advantage of the available space.

The most popular mattress size is 90 × 200 cm. For single beds, this is in general the most prevalent mattress size in Germany. 100 × 200 cm is the second most popular size for our children’s beds. If a parent often sleeps in the same bed as their child or if more space for playing is needed, you can also select a more spacious option instead, such as 120 × 200 cm or 140 × 200 cm. For particularly challenging room situations (e.g. narrow alcoves or niches) we also offer beds for smaller mattress sizes with 80 cm width or 190 cm length. We even provide suitable kids’ beds for mattresses up to 220 cm in length, allowing you to use our beds “forever”, as many children nowadays grow rather tall.

For the Corner Bunk Bed as well as the corner versions of the Both-Up Bunk Beds and Triple Bunk Beds there are fewer mattress size options to choose from. If you plan to convert a loft bed or bunk bed into a corner bed at some point, we recommend choosing a mattress size compatible with a corner bed now already. This will make the conversion easier later on.

If you need a children’s bed for a custom size mattress, please contact us.

The total size of the bed results from calculating the mattress size and the wooden construction parts. The outside dimensions are available on the respective product pages of our kids’ beds.

For our children’s beds we recommend the use of mattresses with a minimum thickness of 10 cm. However, the thickness should not exceed 20 cm (for sleeping levels with high fall guard ) and 16 cm (for sleeping levels with basic fall guard ) respectively.

Tips regarding international mattress sizes

  • If you buy a mattress from us, you can choose from any of the mattress sizes we offer for our kids’ beds.

  • If you already have a Single mattress (35 × 75 in, United Kingdom), it can be used with our 90 × 190 cm beds.

  • If you already have a Small Single mattress (30 × 75 in, United Kingdom), it can be used with our 80 × 190 cm beds.

  • If you already have a Twin/Single mattress (38 × 75 in, United States), it can be used with our 100 × 190 cm beds.

  • If you already have a Twin XL mattress (38 × 80 in, United States), it can be used with our 100 × 200 cm beds after some small adjustment to the bed (please let us know upon ordering).

  • If you already have a Double/Full mattress (53 × 75 in), it can be used with our 140 × 190 cm beds.

For our kids’ beds, we recommend choosing the ecological mattresses “Nele Plus” and “Nele Comfort” by PROLANA, or alternatively, the more affordable foam mattresses.

80 × 190 cm
UK: Small Single
80 × 200 cm
80 × 220 cm
90 × 190 cm
UK: Single
90 × 200 cm
90 × 220 cm
100 × 190 cm
US: Twin/Single
100 × 200 cm
US: Twin XL*
100 × 220 cm
120 × 190 cm
120 × 200 cm
120 × 220 cm
140 × 190 cm
UK/US: Double/Full
140 × 200 cm
140 × 220 cm
*) Using a Twin XL mattress with our beds requires some small adjustment to the bed, please let us know ordering if you wish to do this.

The surface area of sleeping levels equipped with protection boards (the standard configuration for e.g. the kids’ loft bed and the upper sleeping levels of all bunk beds) is slightly narrower than specified because the boards  are attached on the inside. If you already have a mattress for children that you would like to continue to use, it needs to be somewhat flexible to fit. However, if you are intending to buy a new mattress anyway, we recommend that you order a 3 cm narrower version of the respective children or teen mattress (e.g. 87 × 200 cm instead of 90 × 200 cm) for a less tight fit with the protection boards and it will also make changing the sheets easier. For all the mattress sizes we offer, you have the option to choose the 3 cm narrower variant.