How to make my mattress firmer?

How to make my mattress firmer?


If you find that your mattress is too soft and lacks the necessary support, you may be wondering how to make it firmer. A firm mattress can provide better spinal alignment, reduce pressure points, and offer a more comfortable sleep surface. Fortunately, there are several methods you can try to make your mattress firmer without having to invest in a new one. In this article, we will explore different approaches to achieve a firmer mattress and improve your overall sleep quality.

Adjusting the Foundation

Materials used: Bed slats, plywood, or adjustable base.

One way to make your mattress firmer is by adjusting the foundation it sits on. If you have a bed frame with slats, check if they are properly spaced and supportive. If the gaps between the slats are too wide, consider adding additional slats or a bunkie board to provide better support.

Alternatively, you can place a piece of plywood between the mattress and the foundation. This will create a solid surface and prevent the mattress from sinking too much. Ensure that the plywood is smooth and free from any sharp edges that could damage the mattress.

Another option is to invest in an adjustable base. These bases allow you to customize the firmness of your mattress by adjusting the angle of elevation. By raising the head or foot of the bed, you can create a firmer sleeping surface.

Using Mattress Toppers

Materials used: Mattress topper, memory foam, latex.

If adjusting the foundation doesn’t provide the desired firmness, you can consider using a mattress topper. Mattress toppers are available in various materials, such as memory foam or latex, and can significantly alter the feel of your mattress.

To make your mattress firmer, opt for a firmer mattress topper. Memory foam toppers with a higher density or latex toppers can add firmness and support to your existing mattress. Make sure to choose a topper that is compatible with your mattress size and provides the desired level of firmness.

Rotating and Flipping

Materials used: None.

Sometimes, the firmness of a mattress can be improved by simply rotating or flipping it. Most mattresses are designed to be used on one side for an extended period, but flipping or rotating them can distribute the wear more evenly.

If your mattress is double-sided, try flipping it over. This can provide a different level of firmness on the other side. If your mattress is single-sided, rotate it 180 degrees. By changing the orientation, you may find that certain areas that were previously softer now offer more support.

Considerations and Limitations

Materials used: None.

While these methods can help make your mattress firmer, it’s important to note that they may not work for all types of mattresses. Some mattresses, such as pillow-top or euro-top models, have built-in comfort layers that cannot be altered. In such cases, adjusting the foundation or using a topper may have limited effectiveness.

Additionally, keep in mind that these methods can only do so much to change the overall feel of a mattress. If your mattress is excessively worn out or sagging, it may be time to consider investing in a new one for optimal support and comfort.


Making your mattress firmer can be achieved through various methods, including adjusting the foundation, using mattress toppers, and rotating or flipping the mattress. These approaches can help improve the support and comfort of your mattress, leading to a better sleep experience. However, it’s important to consider the limitations of each method and assess the condition of your mattress before deciding on the best course of action.


– Sleep Foundation:
– The Spruce:
– Healthline: