Murphy Bed Mattress Guide: How to Choose the Perfect Fit for Better Sleep
Murphy beds can transform a guest room, home office, or multipurpose space. But choosing the right mattress is what makes the difference between a bed that simply fits and a bed that actually sleeps well. Unlike a standard bed, a wall bed requires a mattress that is designed for vertical storage, proper thickness, and reliable structure.
This guide walks you through everything you need to know to find the perfect fit, so your Murphy bed works smoothly and feels as comfortable as a traditional bed.
Why Murphy Bed Mattresses Are Different (and Why It Matters)
What works well on a traditional bed does not always work well inside a wall bed. Because a Murphy bed stores upright, the mattress is regularly positioned against gravity. Over time, foams can shift, layers can compress unevenly, and support can break down. This is why you need a mattress that can keep its shape.
Because when the wrong mattress is used, it can affect your sleep quality, as uneven support can lead to discomfort. At the same time, the function of the bed is also affected because a mattress that is too thick or too soft may not fold correctly. Over time, this stress can reduce the overall lifespan of the bed system.
That’s why Murphy beds and wall beds are designed differently today. At Northwest Closets & Wallbeds, we create a complete system where the mattress, frame, and hardware work together. Instead of forcing a standard mattress into a vertical setup, each wall bed is built to perform reliably over time.
The 3 Non-Negotiables: Thickness, Weight, and Structure
When it comes to wall beds, there are three non-negotiables that matter more than anything else. These are thickness, weight, and structure.
Murphy beds are designed with specific comfort sweet spots in mind, falling within a defined height range. A mattress that is too thin may feel unsupportive, while one that is too thick can interfere with folding and place strain on the mechanism.
Weight also directly affects how the bed lifts and lowers each day. Heavier mattresses may make the bed harder to operate and increase stress on the hardware over time. On the other hand, a mattress that is too light may lack the density needed for consistent support.
Finally, structure is what ties everything together. A Murphy bed mattress must be able to support itself when stored upright. This is where a simple but important test comes in. Can you stand the mattress up, and does it hold its shape without collapsing?
When a mattress passes this test, it shows the internal structure is strong enough for vertical use. When it fails, it may bend in the middle or have materials that shift out of place.
Mattress Types That Work Best in Murphy Beds
Once thickness, weight, and structure are sorted, the next decision is the type of mattress. Many mattress styles feel comfortable on a traditional bed, but not all of them are built for vertical storage.
Innerspring mattresses tend to work best in wall beds. Their coil systems provide built-in structure, which helps the mattress hold its shape when stored upright. Because the support is spread evenly across the surface, it offers consistent comfort.
In some cases, a hybrid mattress can also be a great option. These combine an innerspring core with foam layers on top. However, a hybrid mattress should have a strong coil base and moderate foam layers, rather than thick, soft foams that can compress when stored vertically.
All-foam mattresses, on the other hand, can feel very comfortable at first. But many foam-only designs do not have the internal support needed for a wall bed. Over time, storing the mattress upright can cause it to bend or lose its shape, which leads to uneven support and reduced comfort.
Because of this, heavy memory foam options often cause the most problems. Tempur-Pedic mattresses, for example, are typically not a good fit for Murphy beds. Their dense foam construction makes them very heavy, which makes it difficult for them to support themselves in a vertical position.
Choosing the Right Height: 10" vs 12" vs 15"
Once the mattress type is decided, the next consideration is height. A 10-inch mattress is best for slim profiles and lighter overall weight. It is easier to lift and places less strain on the wall bed hardware. A 12-inch mattress also offers a balanced mix of comfort and compatibility, without becoming too heavy or bulky.
At the higher end, a 15-inch mattress is suitable for those who want a more plush bed feel. It includes deeper comfort layers and works well for primary sleeping spaces. However, in some setups, a 15-inch mattress can be too heavy and place extra stress on the mechanism.
Beyond comfort, mattress height also impacts everyday details. For instance, taller mattresses may require deeper sheets and reduce overall wall bed clearance when stored. Shorter mattresses, on the other hand, allow for easier closing and a cleaner fit within the cabinet.
Comfort and Performance: What to Prioritize for Real Sleep Quality
Comfort and performance are key to getting good sleep from a Murphy bed. First thing to consider is firmness. For a guest bed that’s used occasionally, a medium firmness works well. However, for nightly use, firmness becomes more personal and should match your sleep position and comfort needs.
Edge support also matters because wall beds are often used in tighter spaces. This means sitting on the edge and getting in and out of bed happens more often. As a result, a mattress with strong edge support feels more stable and holds its shape better over time.
Temperature control is another important factor, especially for a bed that is stored upright during the day. Mattresses with good airflow and breathable materials help prevent heat and moisture from building up, so the bed feels fresh when it’s opened again.
Finally, durability keeps everything working long-term. A quality mattress should resist sagging, use strong support layers, and come with a clear warranty. These details help ensure lasting comfort and reliable performance.
Installation, Bedding, and Maintenance Tips for Long-Term Success
Even the best mattress can underperform if it is not installed correctly or maintained over time. That is why getting the right fit on your wall bed platform is essential. A mattress that is even slightly off in size or thickness can affect how smoothly the bed opens and closes.
Bedding choices also matter in a Murphy bed. A quality mattress protector helps shield against dust and moisture. At the same time, using sheets with the correct depth keeps everything neatly in place when the bed is folded away.
Also, ongoing maintenance like rotating the mattress on a regular schedule helps reduce sagging. However, over time, even a well-made mattress will show signs of aging. When support weakens or the mattress no longer stands well when stored, it usually means it’s time for a replacement.
Considering a Murphy Bed?
When shopping for a Murphy bed mattress, follow the simple right mattress formula: strong structure, the right height, and an appropriate weight. These three factors ensure your mattress stands upright when stored, folds smoothly with the bed, and delivers reliable support every night.
Ready to sleep smarter and save space? Explore Northwest Closets & Wallbeds today and find the perfect mattress designed for your wall bed system!
Frequently Asked Questions
Can I use any mattress in a Murphy bed?
Yes, you can use a mattress in a Murphy bed, but not all mattresses will work. Some mattresses are not designed for vertical storage and can bend, sag, or interfere with the folding mechanism. For lasting comfort, it’s best to choose a mattress specifically made for wall beds.
What mattress thickness is best: 10", 12", or 15"?
A 10-inch mattress is lightweight and easy to lift, making it ideal for occasional use. A 12-inch mattress is often the best choice because it balances comfort with compatibility. A 15-inch mattress offers a more cushioned feel, but can be too thick for some setups, so it’s important to check your wall bed’s specifications before choosing this height.
Published • Garrett Woodruff