Innerspring or Foam Mattress for a Murphy Bed?

Why Mattress Type Matters in a Vertical Murphy Bed

In a vertical fold Murphy bed, the mattress rides up and down with the cabinet and spends most of its life standing on end inside the closed frame. That means the mattress has to hold its shape in a position no regular bed ever asks of it. This article compares innerspring and foam mattresses on four points: foldability, weight, breathability, and sagging, using the stated details on maker pages.

A vertical bed is the most common layout for a wall bed or cabinet bed. If you are still deciding between fold directions, the vertical versus horizontal guide explains when each suits a room. For the mattress question, the same rule applies to both directions, but a vertical fold is the one that puts the mattress on its end.

Foam Core Mattresses and the Maker's Description

On its Murphy bed mattress page, Wilding Wallbeds describes its foam core mattresses as specifically engineered to stand on end in a Murphy bed with no slumping or sagging. That wording matters: the maker is stating that these foam builds are made for upright storage inside a cabinet.

Foam mattresses listed by Wilding include layers of gel memory foam and a supportive foam base, with features such as HexCloud gel memory foam and a CoolTouch top on some models. Cabinet beds from Wilding and from Night and Day Furniture ship with a tri-fold foam mattress as the included option.

For a cabinet bed purchase, the stated mattress is often a tri-fold gel memory foam mattress. That is the type the maker pairs with the cabinet, so it is the one the design department built around.

Innerspring and Pocket Coil Mattresses

An innerspring mattress uses a system of steel coils for support. In a Murphy bed catalog, that idea appears as a pocket coil or continuous coil build. Night and Day Furniture's Murphy cabinet collection lists a tri-fold gel pocket coil mattress as an alternative to its tri-fold gel memory foam mattress.

The coils leave air channels inside the mattress, which is why innerspring builds are generally associated with a cooler sleep. The trade-off on the stated details is weight: a coil core adds mass compared with a foam core, and in a folding bed that mass rides up and down with the mechanism.

If you are comparing wall beds, read the listing to see whether an innerspring option is offered at all. Many makers list only foam; Night and Day is an example of a maker that lists both types for its cabinet beds.

Foldability and Sagging in an Upright Position

The core question for a vertical Murphy bed is whether the mattress keeps its shape while stored upright. Wilding's page for its Murphy desk beds says the bed takes a mattress that has been engineered to stand on end without slumping or sagging over time. That sentence describes the foam builds the maker sells alongside its beds.

No source page in this comparison states that an innerspring mattress is engineered for that upright position. If you choose an innerspring mattress, the listing is the place to check: does the maker describe it as suitable for Murphy bed storage, or does it only offer a tri-fold version for a cabinet bed? A mattress that slumps inside a closed cabinet is a problem the next time you pull the bed down.

For more on how sagging shows up in a folded bed, see the sagging explanation.

Weight and the Lift Mechanism

In general terms, a foam mattress weighs less than an innerspring mattress of the same size because foam is lighter than steel coils. In a Murphy bed, the mattress is the part that moves with the mechanism, so a lighter mattress makes the lift feel lighter in everyday use.

None of the source pages states a mattress weight, so there is no number to compare here. What you can read is the bed's own listing: some makers state a weight rating for the bed, and that number lives on the maker's page, not in this article. Check it against the mattress you plan to use.

If lifting effort is your main concern, a Murphy bed kit with a planned lightweight foam mattress can keep the folded package manageable. The mechanism itself is the maker's subject; their page states what the lift system is.

Breathability and Cooling

Heat retention is where the two types separate most clearly. An innerspring mattress lets air move through the coil layer, which is why it is usually described as sleeping cooler. A foam mattress is denser, and heat can build up in the layers.

Makers address that on foam builds with cooling layers. Wilding lists gel memory foam, a CoolTouch top, and built-in cooling on several models. Night and Day's tri-fold foam mattress is a gel memory foam build, which is the same approach: use gel to pull heat away from the sleeper.

For a nightly sleep setup, see the breathability discussion. If you already sleep warm in a regular bed, the innerspring option may be the better fit, provided the listing shows a tri-fold or Murphy-specific version.

What to Read in a Murphy Bed Listing

When a listing includes a mattress, the words to look for are the type name, such as memory foam, gel memory foam, pocket coil, or innerspring, and the fold word, such as tri-fold for cabinet beds. Those two details tell you how the mattress behaves inside the closed cabinet.

If the listing does not state a mattress type, that is a missing detail to ask the seller about before buying. A Murphy bed is not a regular bed frame: the mattress choice affects whether the cabinet closes fully. The mattress compatibility guide and the mattress thickness guide cover the other half of the question.

For a guest room where the bed folds away most days, a foam mattress the maker describes as standing on end is the straightforward match. For a room where cool sleeping matters more than the folded silhouette, an innerspring or pocket coil option is worth the extra consideration.

What to pick for your situation

Questions

Does a Murphy bed need a special mattress?

A vertical Murphy bed stores the mattress upright inside the cabinet, so the mattress must hold its shape in that position. Wilding Wallbeds describes its foam mattresses as engineered to stand on end without slumping or sagging. A regular innerspring mattress may not have that description from the maker, so read the listing before buying.

Can I use an innerspring mattress in a Murphy bed?

Makers do offer innerspring options in the form of tri-fold pocket coil mattresses for cabinet beds. Night and Day Furniture lists a tri-fold gel pocket coil mattress alongside its tri-fold gel memory foam mattress. The innerspring build weighs more, and on the pages compared here it lacks the upright-engineering description that the foam builds carry.

Do foam mattresses sleep hot in a Murphy bed?

Foam is denser than a coil core, so heat can build up. Makers address that with cooling layers: Wilding lists gel memory foam and a CoolTouch top on several models, and Night and Day's foam tri-fold is a gel memory foam build.

What is a tri-fold mattress?

A tri-fold mattress folds into three sections so a cabinet bed can close around it. Cabinet beds from Wilding ship with a 6-inch tri-fold mattress, and Night and Day offers both a tri-fold gel memory foam and a tri-fold gel pocket coil version.

Which mattress type is lighter for a folding bed?

Foam is generally the lighter choice because it has no steel coil core. No source page states a mattress weight, so compare the actual mattress you plan to buy and check the bed's own weight rating on the maker's page.

Should I buy the mattress separately or with the bed?

It depends on the listing. Some cabinet beds include a tri-fold mattress; other wall beds and kits do not. The listing states which is the case, and if it is silent on the mattress, ask the seller before ordering.