Best Small Sofa Beds for Narrow Rooms

Many standard sofa beds run between 200 and 250 cm wide. If you are furnishing a studio flat, a box room, or any wall shorter than 180 cm, most of the market is already out of reach before you compare a single specification. A small sofa bed fills that gap — but only if it sleeps as well as it sits.

The Koala Sofa Bed [4th Gen] comes in three sizes designed to work in narrow rooms, each converting to a full-width sleep surface via a flip-flat mechanism that removes the ridge and bulk of traditional pull-out designs. Whether you need it for a loft conversion, a spare room, or a flat where the sitting room also serves guests, the key measurements to get right are sofa width, seat depth, and how much floor space the bed requires when open.

What Should I Look For in a Small Sofa Bed?

The right compact sofa bed comes down to six criteria. Check these before comparing fabric colours or leg finishes.

• Sofa width — For narrow walls, look for a sofa under 180 cm wide. The 1.5-Seater (Single) at 122 cm is the tightest option — compact enough for walls where a standard two-seater would not fit; the 2.5-Seater (Double) at 163 cm suits rooms with a little more wall space.
• Open depth — The most overlooked measurement. All Koala sofa bed sizes need 222.5 cm of clear floor space in front when fully extended. Measure from the wall before ordering — not just the wall width.
• Conversion mechanism — Traditional pull-out frames fold a metal spine out of the sofa base, creating a ridge across the middle of the sleep surface and requiring bulk inside the base for storage. Flip-flat designs fold the adjustable backrest down so the seat cushion becomes the sleep surface — no ridge, no deep base.
• Sleep surface quality — High-density foam or a dedicated comfort layer matters more than surface thickness alone. Koala describes Kloudcell™ foam — used across their mattress range — as delivering superior support and breathability compared with the thin padded mattresses typical in budget pull-out frames.
• Washable covers — Essential for any sofa bed regularly used by guests. Removable zip-off covers that can be laundered at home keep things hygienic without specialist cleaning.
• Delivery box size — Narrow rooms often come with narrow stairwells. Confirm the sofa ships in boxes that will fit your access points. Koala ships the 1.5-Seater in boxes no wider than 110 cm; the 3-Seater in boxes up to 162 cm wide.

The Koala Sofa Bed [4th Gen]

The Koala Sofa Bed [4th Gen] is Koala's sofa bed offering in the UK, available in three sizes. All three share the same FlipBed™ mechanism, the same Kloudcell™ sleep surface, and the same 63 cm deep seats. The size you choose affects wall width and sleep surface width — not the quality of the sitting or sleeping experience.

Rated 4.9 stars from 1,637 reviews, with 99% of buyers saying they would recommend it.

FlipBed™: How the Conversion Works

The FlipBed™ removes the hinged metal frame found in traditional pull-out sofa beds entirely. Conventional designs store this frame inside the sofa base; when pulled out, it creates a ridge at the fold point and demands significant depth in the base for storage. The FlipBed design folds the adjustable backrest flat instead — the seat becomes the sleep surface, supported by a solid base.

The result: a shallower sofa footprint, a flat sleep surface with no central ridge, and a conversion one person can complete in seconds. It serves as both a daily sofa and an instant guest bed, converting back with the same single step — no mechanism to wrestle with.

How It Compares to a Traditional Pull-Out Frame

Sleep Surface and Comfort Technology

The sleep surface uses Kloudcell™ foam — a high-density, open-cell foam that delivers support, breathability, and responsiveness — with an integrated extra-plush comfort layer and a removable, machine-washable zip-off topper. For guests sharing the bed, Zero Disturbance™ technology helps isolate movement so neither person disturbs the other.

For sitting, the 63 cm deep seat is set at a natural recline angle with a zoned backrest — softer at the upper back, firmer at the lumbar — and front-edge support to keep you in position during extended sitting.

Fabrics and Materials

Three fabric ranges are available: Classic (100% recycled polyester, water-resistant), Cord, and Luxe. Covers are removable for laundering. The frame uses FSC® certified poplar plywood and MDF.

Note: Sandstone (Cord) and Coastal Moss (Cord) are not water-resistant. Always check the care label on your specific fabric before washing.

See all colour options and current pricing on the Koala Sofa Bed product page.

Key Specifications

On fold-out widths: Koala's size names (Single, Double, King) describe seating capacity, not UK mattress sizes. The 1.5-Seater folds to 121.9 cm, which is close to a small double (120 cm). The 2.5-Seater folds to 162.5 cm, which falls between a UK king (150 cm) and super king (180 cm) — king-size fitted sheets will be slightly narrow; super king will overhang on each side. The 3-Seater folds to 178 cm, which is close to a UK super king (180 cm). Koala confirms that standard fitted sheets work across all three sizes.

The Koala Sofa Bed Ottoman

The Koala Sofa Bed Ottoman is the companion piece to the sofa bed, sold separately, and available across the same Classic, Cord, and Luxe fabric ranges. In a narrow room, it earns its place by doing more than one thing at once.

• Hidden storage — The lid lifts to reveal a storage compartment, useful for spare bedding, cushions, or anything that would otherwise claim floor space.
• Flippable top — Flip the lid over and the ottoman converts to a hard-top side table. In a narrow room, this is a practical alternative to a fixed coffee table: move it aside when the bed is open, use it as a table when the sofa is closed.
• Chaise extension — The ottoman can be connected to the sofa to create a chaise configuration, extending the seating area when you have room and removing it when you need the floor space back.
• Matching set — Available in the same fabric options as the sofa bed for a paired look.

See current pricing on the ottoman product page.

Which Size Is Right for Your Room?

Use these as starting points — always measure both your wall width and your open-depth clearance before ordering.

1.5-Seater (Single) — Best for Studio Flats and Box Rooms

Requires a wall at least 122 cm wide. The 121.9 cm fold-out width makes this the most compact option in the range — a practical choice for single sofa beds in studio flats, box rooms, loft conversions, home offices that double as spare rooms, and garden rooms where space is limited. Assembly boxes are no wider than 110 cm, making it one of the more doorway-friendly options to get upstairs.

2.5-Seater (Double) — The Most Versatile Choice

Fits most standard rooms with some clearance at the sides. The 162.5 cm fold-out width comfortably sleeps two adults for occasional overnight stays. The best all-round option for a spare room that also needs to work as an everyday sitting space.

3-Seater (King) — Best for Regular Overnight Guests

The largest option. Requires a wall at least 180 cm wide. The 178 cm fold-out width is close to super king size and is the most practical choice if your guests tend to stay more than a night or two, or if two adults will share the bed regularly.

Minimum Room Size Guide

All three sizes require 222.5 cm of clear floor depth when extended — see Key Specifications above. The narrower widths give you more clearance at the sides of the room; they do not reduce the floor depth required in front.

How Do I Set Up a Small Sofa Bed in a Narrow Room?

Place the sofa against the longest wall with at least 222.5 cm of clear floor space in front — that is the depth required when the bed is fully open. Most buyers measure wall width only and miss this entirely.

Orient the sofa so the bed extends along the room's length rather than across it. Avoid fixed coffee tables in front of a sofa bed; the ottoman works well here — it can be moved to the side when the bed is open, stores spare bedding under the lid, and doubles as a hard-top table when the sofa is closed.

For more ideas in rooms where the sofa has to do more than one job, Koala's space-saving sofa beds range covers options designed around these exact constraints.

What Do Customers Say About the Koala Sofa Bed?

The Koala Sofa Bed [4th Gen] holds a 4.9-star rating from 1,637 verified reviews, with nearly all buyers saying they would recommend it. The most common themes: the quality feel of the fabrics, how the bed converts without the aches of a traditional pull-out frame, and how easy the assembly is.

"I'm absolutely delighted with this sofa bed. What impressed me most is that it doesn't look like a typical sofa bed at all. It's incredibly stylish and has become a beautiful focal point in my living room. The fabric colour, texture, and feel are exactly what I was hoping for, and the quality exceeded my expectations."

— MAKO M., verified buyer

"Love this sofa bed and it's so easy to put together. The creators thought of everything!"

— Kelley K.

Delivery and Returns

Free delivery to England, Scotland, and Wales*, arriving within 7 days with a booked delivery slot — you choose a date that suits you. The sofa ships in five flat-pack boxes; no tools are required for assembly.

Every purchase includes a 120-day free trial period. If the sofa is not right, Koala arranges a free collection and provides a full refund, including any delivery charge. All purchases are backed by a 5-year warranty against manufacturing defects.

Free delivery does not currently cover Northern Ireland, the Scottish Highlands and Grampian, Isle of Man, Channel Islands, Isles of Scilly, Scottish Offshore Islands, or the Isle of Wight.

Frequently Asked Questions

Is a small sofa bed suitable for a narrow room or studio flat?

Yes. The 1.5-Seater (Single) at 122 cm wide fits most narrow walls without dominating the room. It uses the FlipBed™ mechanism, which means there is no metal frame inside the base adding extra depth. At 122 cm wide, it is well suited to studio flats, box rooms, and rooms where a full-width sofa is not practical.

What is the minimum room size for a small sofa bed?

All three Koala Sofa Bed sizes share the same 222.5 cm open depth when the bed is fully extended. You need at least 222.5 cm of clear floor space in front. For comfortable day-to-day use with the bed folded away, plan for a room at least 300 cm deep. The sofa width (122–178 cm) determines the minimum wall width — add a few centimetres of clearance on either side.

Does the sofa bed require assembly?

No tools needed. All parts slot, click, or zip into place using alignment guides and colour-coded tabs. The flat-pack boxes for the 1.5-Seater (Single) are no wider than 110 cm, making them manageable through standard UK doorways and up most stairwells.

Can it be used as a bed for overnight guests?

Yes — the Kloudcell™ sleep surface is built for genuine overnight stays. Koala recommends it for regular guest use rather than as an every-night primary bed. For two guests sharing, Zero Disturbance™ technology helps isolate movement so neither person disturbs the other during the night.

See Koala's sofa beds for overnight guests for more on choosing by guest use.

How easy is the conversion from sofa to bed?

Fold the adjustable backrest flat and the sleep surface is ready. There is no frame to pull out, no ridge to deal with, and no lifting required — one person can convert it in a matter of seconds.

What is the difference between a small sofa bed and a futon?

A futon folds the entire frame forward so the backrest drops to form one continuous surface. A sofa bed stores its sleep mechanism separately within the frame. The FlipBed™ design is similar in principle — the backrest folds flat — but uses a high-density foam sleep surface and a fully upholstered frame with an integrated comfort layer, rather than a fold-flat structure with minimal padding.

How do I clean and maintain the Koala Sofa Bed?

The zip-off sleep topper is machine washable on a cold cycle. The outer covers are removable for laundering — care instructions vary by fabric, so always check the label on your specific cover before washing. Classic fabric covers are hand wash only; do not machine wash. For everyday maintenance, vacuum on a low setting weekly and wipe spills quickly with a clean cloth. Line dry in shade only — no tumble drying, ironing, or bleach.

What is the Koala Sofa Bed Ottoman, and is it included?

The Koala Sofa Bed Ottoman does not come included with the sofa bed — it is purchased separately. It is the companion piece to the sofa bed, offering hidden storage under the lid, a flippable top that converts to a hard-top side table, and the option to connect it to the sofa as a chaise extension. In a narrow room it is most useful as a moveable storage unit and table alternative — you can shift it aside when the bed is open. It is available across the same fabric range as the sofa bed for a matching set.

How long does a sofa bed last?

The Koala Sofa Bed [4th Gen] is backed by a 5-year warranty. Foam comfort layers in a flip-flat design are not subject to the same fold-point mechanical stress as spring mattresses in traditional pull-out frames.

What are Koala's UK delivery exclusions?

Koala delivers free to England, Scotland, and Wales. Free delivery does not currently cover Northern Ireland, the Scottish Highlands and Grampian, Isle of Man, Channel Islands, Isles of Scilly, Scottish Offshore Islands, or the Isle of Wight. See Koala's delivery page for the full list of excluded postcodes.

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You Might Also Like

• Koala Sofa Bed [4th Gen] — all sizes, fabric options, and current pricing

• Koala Sofa Bed Ottoman — hidden storage, side table, and chaise extension in one

• Space-Saving Sofa Beds — the full range for compact rooms

• Single Sofa Beds — the narrowest options

• Sofa Beds for Overnight Guests — if guest comfort is the priority