Best Mattress for a Murphy Bed: Weight, Thickness & Buying Guide (2026)
August 21, 2026Buying the best mattress for a Murphy Bed is just as important as choosing the Murphy Bed itself. Many people compare mattress brands and materials first. However, they often overlook the most important factor—mattress weight.
A Murphy Bed uses a lifting mechanism that works within a recommended weight range. If the mattress is too heavy, the bed becomes harder to open and close. Over time, extra weight can also reduce the performance of the lifting mechanism.
For most Murphy Beds, a lightweight foam mattress weighing less than 25 kg is the best choice. It offers excellent comfort while helping the bed operate smoothly.
In this guide, you’ll learn how to choose the right mattress, what thickness works best, and which mistakes to avoid.
Quick Answer
The best mattress for a Murphy Bed is a high-quality foam mattress that weighs less than 25 kg and fits the manufacturer’s recommended thickness.
A lightweight mattress keeps the Murphy Bed balanced, makes daily operation easier, and helps protect the lifting mechanism.
Why Mattress Weight Matters
Mattress weight is more important than many people realise.
Every Murphy Bed lifting mechanism is designed to support a specific weight. If the mattress is too heavy, the mechanism has to work harder every time you open or close the bed.
As a result, you may notice:
- The bed feels heavier to lift.
- Closing the bed takes more effort.
- The lifting mechanism wears faster.
- The bed no longer opens or closes smoothly.
Therefore, always check the mattress weight before making your purchase.
What Mattress Weight Is Best?
For most Murphy Beds, a mattress weighing less than 25 kg provides the best balance between comfort and smooth operation.
Use this simple guide.
| Mattress Weight | Recommendation |
|---|---|
| Under 20 kg | ✅ Excellent |
| 20–25 kg | ✅ Recommended |
| Over 25 kg | ⚠️ Check your Murphy Bed manufacturer’s limit |
Although some Murphy Beds can support heavier mattresses, staying below 25 kg helps reduce strain on the lifting mechanism.
Why Foam Mattresses Are the Best Choice
For most homeowners, a foam mattress is the safest and most practical option.
Foam mattresses are lighter than many spring and hybrid mattresses. Consequently, they make the Murphy Bed easier to operate while still providing excellent comfort for everyday sleeping.
A good foam mattress also offers:
- Lightweight construction
- Good body support
- Less pressure on the lifting mechanism
- Easy daily operation
- Comfortable sleep for regular use
For these reasons, many Murphy Bed manufacturers recommend foam mattresses over heavier alternatives.
Can You Use a Spring Mattress?
Yes, you can. However, you should check the weight first.
Many spring mattresses weigh more than foam mattresses. Because of this, they may exceed the recommended weight for your Murphy Bed.
If you choose a spring mattress, make sure it stays within the weight limit specified by the manufacturer.
Are Hybrid Mattresses Suitable?
Hybrid mattresses combine foam and springs. While they offer excellent comfort, they are often heavier than standard foam mattresses.
Therefore, they may not be the best choice for every Murphy Bed.
Always compare the mattress weight with your Murphy Bed’s recommended limit before buying.
What Mattress Thickness Works Best?
Besides weight, mattress thickness also matters.
Most Murphy Beds work well with mattresses between 5 and 6 inches thick. Some premium Murphy Beds can accommodate thicker mattresses, but you should always follow the manufacturer’s recommendations.
Choosing a mattress that is too thick may prevent the bed from closing properly.
Can You Leave the Mattress Inside a Murphy Bed?
Yes.
Most modern Murphy Beds allow you to leave the mattress inside when you fold the bed away.
Many models also include retaining straps that hold the mattress securely in place. As a result, you don’t have to remove the mattress every day.
How to Choose the Right Mattress
Choosing the right mattress is simple if you follow these steps.
Step 1: Check the Weight
Choose a mattress that weighs less than 25 kg whenever possible.
Step 2: Confirm the Thickness
Make sure the mattress fits within the recommended thickness for your Murphy Bed.
Step 3: Select the Correct Size
Always match the mattress size to the bed frame.
Step 4: Choose a Foam Mattress
A high-quality foam mattress usually provides the best combination of comfort, weight, and durability.
Step 5: Buy From a Trusted Brand
A well-made mattress will maintain its shape and provide better long-term support.
Common Mistakes to Avoid
Many buyers make the same mistakes. Fortunately, they are easy to avoid.
Buying Only for Comfort
Comfort matters. However, compatibility matters just as much.
Ignoring Mattress Weight
A mattress that exceeds the recommended weight can affect how the Murphy Bed operates.
Choosing a Mattress That Is Too Thick
Always follow the recommended thickness for your Murphy Bed.
Buying Without Checking Specifications
Before you buy, compare the mattress weight, thickness, and dimensions with the Murphy Bed manufacturer’s guidelines.
Mattress Comparison
| Mattress Type | Weight | Comfort | Recommended for Murphy Beds |
|---|---|---|---|
| Foam | ⭐⭐⭐⭐⭐ Light | ⭐⭐⭐⭐⭐ | ✅ Best Choice |
| Latex Foam | ⭐⭐⭐⭐ | ⭐⭐⭐⭐⭐ | ✅ Good Choice (Check Weight) |
| Pocket Spring | ⭐⭐⭐ | ⭐⭐⭐⭐ | ⚠️ Check Weight |
| Hybrid | ⭐⭐ Heavy | ⭐⭐⭐⭐⭐ | ⚠️ Only if Within Weight Limit |
Murphy Bed Mattress Checklist
Before ordering your mattress, check the following.
✅ Weight is below 25 kg
✅ Mattress thickness matches the Murphy Bed
✅ Mattress size fits the frame
✅ Foam construction preferred
✅ Manufacturer’s recommendations confirmed
Following this checklist will help your Murphy Bed operate smoothly for years.
Frequently Asked Questions
What is the best mattress for a Murphy Bed?
A lightweight foam mattress weighing less than 25 kg is usually the best choice because it combines comfort with smooth operation.
Can I use a regular mattress?
Yes, provided it meets the recommended weight, thickness, and size for your Murphy Bed.
Can I leave the mattress inside the Murphy Bed?
Yes. Most Murphy Beds allow you to keep the mattress inside when the bed is folded away.
Why do Murphy Bed manufacturers recommend foam mattresses?
Foam mattresses are lighter than many spring or hybrid mattresses. Therefore, they place less stress on the lifting mechanism while still providing excellent comfort.
What happens if my mattress is too heavy?
A heavy mattress can make the Murphy Bed harder to operate and may increase wear on the lifting mechanism over time.
Final Thoughts
Choosing the best mattress for a Murphy Bed is about more than comfort. Weight, thickness, and compatibility all affect how well your Murphy Bed performs.
For most homeowners, a foam mattress weighing less than 25 kg offers the best combination of comfort, reliability, and ease of use. Before making your purchase, compare the mattress specifications with your Murphy Bed manufacturer’s recommendations.
A little research today can help you enjoy comfortable sleep and smooth operation for many years.