If you're looking for a simple and affordable way to make your soft mattress firmer, a mattress topper is a great option. These thin layers of foam or other materials can be placed on top of your mattress to add extra support. Look for a firmer topper, such as memory foam or latex, to give your mattress a more solid feel. You can also opt for a thicker topper if you want even more firmness. Some popular options for mattress toppers include the DreamFoam 2-Inch Gel Swirl Memory Foam Topper and the Linenspa 3-Inch Gel-Infused Memory Foam Topper. Make sure to read reviews and choose a topper with good ratings and a thickness that fits your preferences.Use a Mattress Topper
If your mattress is flippable, try flipping it over to the other side. This can help distribute the wear and tear, and if one side is softer than the other, flipping it can give you a firmer surface to sleep on. Some mattresses are designed to be used on one side only, so make sure to check with the manufacturer before attempting to flip your mattress.Flip Your Mattress
The foundation or base that your mattress sits on can also play a role in how firm or soft your mattress feels. If you have a box spring, try adding a piece of plywood between the box spring and your mattress. This will provide a solid surface for your mattress to rest on, giving it a firmer feel. You can also adjust the height of your bed by adding or removing a box spring or foundation. A lower bed will feel firmer, while a higher bed may feel softer.Adjust the Foundation
If you don't have a box spring or foundation, you can still use a piece of plywood to add extra support to your mattress. Simply place the plywood board between your mattress and the bed frame. Make sure the board is the same size as your mattress and is smooth to avoid any discomfort. This DIY method can be effective, but it's important to note that it may not work for all types of mattresses. It's best to consult with the manufacturer before using this method, as it may void your warranty.Use a Plywood Board
A mattress pad is similar to a topper, but it is usually thinner and more affordable. It can provide a layer of cushioning and support to your mattress, making it feel firmer. Some mattress pads are also designed specifically for adding firmness to a soft mattress. One highly rated option is the Lucid 2-Inch Traditional Foam Mattress Pad, which is made from high-quality foam and has a medium-firm feel. You can also find cooling mattress pads, which can be a great option if you tend to sleep hot.Invest in a Mattress Pad
If a regular mattress topper is not providing enough firmness, you may want to try a specialty firm topper. These toppers are designed specifically for making soft mattresses feel firmer. They are often made from high-density foam or latex and can add significant support to your mattress. The PlushBeds Natural Latex Topper is a top-rated option that is made from organic latex and has a medium-firm feel. It's also hypoallergenic and resistant to dust mites, making it a great option for those with allergies.Try a Firm Mattress Topper
A mattress encasement is a protective cover that goes around your entire mattress. Not only does it protect your mattress from spills and stains, but it can also add extra support and firmness. Look for an encasement that is specifically designed to add firmness to your mattress, such as the Sleep Innovations Instant Pillow Top Memory Foam Mattress Encasement. Not only will a mattress encasement make your mattress feel firmer, but it can also extend the life of your mattress by protecting it from wear and tear.Use a Mattress Encasement
If you've had your box spring for a while, it may be time for a replacement. Over time, box springs can lose their support and cause your mattress to feel softer. Consider investing in a new box spring or foundation, or switching to a platform bed with a solid foundation for better support.Replace Your Box Spring
If you've tried all the above options and your mattress is still too soft for your liking, you may want to consider exchanging it for a firmer one. Many mattress companies offer a trial period, during which you can exchange your mattress for a different firmness level if you're not satisfied. Before purchasing a new mattress, make sure to read reviews and choose a reputable brand with good customer service. Some top-rated options for firmer mattresses include the Brooklyn Bedding Signature Mattress and the Saatva Classic Mattress.Consider a Mattress Exchange
If none of the above options work for you, you may want to consider investing in a mattress support system. These systems are designed to provide extra support and firmness to your mattress, and they can be a good option if you have a chronic back pain or need more support while sleeping. The SlumberCloud Nacreous Mattress Pad is a popular support system that is designed to provide extra support and pressure relief to your mattress. It can also regulate your body temperature for a more comfortable sleep.Use a Mattress Support System