Arm style looks like the last decision in choosing a sofa bed — the finishing touch after size, mechanism, and color. It’s actually one of the more consequential ones, because changing the arm on an otherwise identical frame changes the overall width by several inches without touching the sleeping surface at all. If a model you like doesn’t quite fit your wall, the arm style is often the fix.
What arm style actually changes
The sleeping surface and the comfort system stay fixed once you’ve chosen a model — those come from the frame and mattress construction. The arm changes three things: overall width, how much of a sofa-like silhouette the piece has, and in some cases whether an accessory tray fits.
Slimmer arms exist specifically to reduce footprint. Wider arms exist to add a more substantial, upholstered presence — and sometimes double as a side table.
Arm styles by collection
Neah — Slim, Standard, and Curved. The Slim arm is built for compact spaces specifically. Curved gives a more tailored, classic sofa silhouette; Standard sits between the two. Neah is offered in this arm range across all three of its sizes.
Newilla — Slim, Standard, and Wide. The Slim arm pairs with the collection’s compact-space positioning. The Wide arm accepts an optional walnut wood tray, turning the armrest into a functional side table — useful next to a desk or reading chair. All three styles are available on the sofa, the lounger, and the lounger chair.
Vilander — Cushion, Roll, and Wide. These read more as style statements than width categories: Cushion emphasizes plush relaxation, Roll brings a classic silhouette, and Wide adds contemporary flair with the same optional wood tray as Newilla.
Carnell — Standard and Slope, where Slope is the space-saving option and Standard the more traditional profile.
Recast Plus — Armless or Slim arms. The armless configuration is the narrowest version of this model available.
Cubed — Armless or with arms, in both full and queen sizes.
Models without stated arm variants — Osvald, Cone, Cassius, Ran, Supremax, Unfurl, Zeal, and Walis — are built to a single silhouette per model.
Using arm style to solve a width problem
If a piece you’ve chosen is a couple of inches too wide for your wall, changing the arm style is usually more productive than moving to a different model entirely. The mattress, comfort system, and mechanism stay the same — only the frame width and profile change.
This works in one direction reliably: going from a wider arm to a slimmer or armless one reduces width. Going the other way — adding width for a more substantial look — is the same logic in reverse, and worth checking against your space just as carefully.
Two collections let you go further and add arms after the fact. Cubed and Supremax can have arms added later by ordering a new frame and armrests — useful if you’re buying armless now but might want arms eventually. Fabric from a later order may not match the original exactly, so this is a hedge, not a guarantee of a perfect match.
Armless for zoning an open room
Beyond width, armless and slim-arm configurations do something specific in an open floor plan: with no bulky arm profile breaking the sightline, the piece can sit in the middle of a room rather than being pinned against a wall. That makes an armless sofa bed a natural boundary between zones in a studio or open-plan space — living area on one side, sleeping area on the other — without a physical divider.
A quick reference
| If you need | Look for |
|---|---|
| Narrowest possible footprint | Armless (Recast Plus, Cubed) |
| A width fix on a model you like | Slim or Slope arm, same collection |
| A functional side table | Wide arm with optional tray (Newilla, Vilander) |
| A tailored, classic sofa look | Curved (Neah) or Roll (Vilander) |
| To zone an open room | Any armless configuration |
| Flexibility to add arms later | Cubed or Supremax, ordered armless |
Frequently asked questions
Does arm style change the sleeping surface size? No. Arm style changes overall width and the sofa’s profile; the mattress and bed size stay the same across arm variants on a given model.
Can I add arms to an armless sofa bed later? On Cubed and Supremax, yes — by ordering a new frame and armrests. Other models in the range don’t offer this after the initial purchase. Fabric from a later order may not match exactly.
Which arm style saves the most space? Armless configurations, available on Recast Plus and Cubed, are the narrowest option. Slim arms on Neah and Newilla are the next-narrowest choice where armless isn’t offered.
What’s the point of a wide arm if it takes up more space? On Newilla and Vilander, the wide arm accepts an optional walnut tray, functioning as a side table. It trades a few inches of width for a genuinely useful surface next to the seat.
If a model’s sleeping surface, storage, and comfort system are right but the width isn’t, check the arm options before moving on to a different collection. See the full buying guide for how this fits into the rest of the decision, or get in touch with your measurements.