Bunk Bed Mattresses

How to Choose a Bunk Bed Mattress

The unique design of bunk beds creates special considerations for shoppers to think about when selecting a proper mattress. Bunk bed mattresses should provide the level of comfort and support that growing kids need to get a good night's sleep. And the right mattress must also fit each bunk in a way that doesn't compromise the effectiveness of the bed's safety features. 

Size vs. Fit

In general, bunk beds use some of the same types of mattresses as traditional beds. The dimensions of each bunk will determine which mattress size is appropriate. Most bunk beds accommodate twin or full size mattresses, or a combination of the two. Twin-size mattresses are smaller and therefore easier to move into position on the top bunk, while full-size ones provide the additional space that older and larger children often need.

When it comes to bunk bed mattresses, however, the most important consideration is the fit rather than the size. The mattress should fit snugly into the frame of the bunk bed without leaving any open space around the edges, as children could be wedged in a gap between an ill-fitting mattress and the bedframe.


When selecting a mattress for a top bunk or loft, it's important to include any bunkie board, if required, in your measurements.  A bunkie board is a wooden frame covered in fabric. It is 1-2 inches thick and adds to the bed's overall height. It sits beneath the mattress and above the bed slats. Refer to the manufacturer’s instructions to ensure that the thickness of the mattress you select does not exceed any height requirements and that the mattress is a least 5” below the upper edge of the guardrails.

Many bunk and loft beds require a bunkie board as the foundation to support the mattress and prevent it from sinking or sliding through the bed slats. A bunkie board provides space-saving, low-profile support for mattresses. Conventional foundations or box springs should not be used on these beds because they add too much height to the mattress and could create a fall risk.

Other Considerations

Beyond size, fit, and height of the mattress, consider other factors like weight and longevity.. The elevated position of a top bunk or loft, for instance,  can make flipping or turning the mattress difficult. Particularly heavy or bulky mattresses should be avoided in favor of lightweight ones, which are easier to move and maintain.

Longevity is also important. Shoppers should balance the anticipated lifespan of the mattress with any budgetary constraints. Keep in mind that the composition of the mattress can affect its features and benefits.

Final Thoughts

The right bunk bed mattress offers comfortable support and fits into the bedframe seamlessly.  Keeping these considerations in mind will help you find the best option for you.