Full Sleeper Sofa Dimensions: A Quick Guide
Buying a sleeper sofa without measuring first is how you end up with a return, a bruised doorframe or a bed your guest can't actually fit in. Let's keep it simple and start with the numbers.
Here's a full (double) sleeper at a glance. The bit everyone mixes up: "full" is the mattress it opens into, not the size of the sofa. So you're really tracking two sets of numbers.
Measurement |
Full sleeper |
What it means |
|---|---|---|
Width, closed |
6′6″–7′4″ (198–224 cm) |
Side to side as a sofa |
Depth, closed |
3′2″–3′4″ (97–102 cm) |
Front to back as a sofa |
Bed width, open |
4′6″ (137 cm) |
Across the mattress |
Bed length, open |
6′3″ (191 cm) |
Head to foot |
The bed numbers are fixed (a full mattress is a full mattress). The sofa numbers vary by brand, arm width and back height. A full sits between a twin and a queen.
Quick read on who fits:
- Twin: one person.
- Full: two adults, cosily.
- Queen: two adults with breathing room.
- King: rare in sleepers, huge footprint.
Sleeper Sofa sizes compared
Same sofa, two modes. Here's closed (what it looks like in your room) and open (the bed you actually sleep on).
Closed (sofa mode, approximate)
Sleeper |
Width |
Depth |
|---|---|---|
Twin |
5′0″–6′0″ (152–183 cm) |
~2′11″–3′2″ (89–97 cm) |
Full |
6′6″–7′4″ (198–224 cm) |
~3′2″–3′4″ (97–102 cm) |
Queen |
7′0″–7′8″ (213–234 cm) |
~3′2″–3′4″ (97–102 cm) |
King |
8′0″+ (241 cm+) |
3′4″+ (102 cm+) |
Open (bed mode)
Sleeper |
Width |
Length |
|---|---|---|
Twin |
3′2″ (97 cm) |
6′3″ (191 cm) |
Full |
4′6″ (137 cm) |
6′3″ (191 cm) |
Queen |
5′0″ (152 cm) |
6′8″ (203 cm) |
King |
6′4″ (193 cm) |
6′8″ (203 cm) |
A full is the sweet spot for most flats: big enough for two, not so wide it eats the whole room. If your layout is tight, our roundup of comfy sofas for small spaces is worth a look first.
How Much Floor Space You Actually Need
Measure the closed footprint, then add clearance to fold the bed out. That's usually another 2′6″ to 3′4″ (76 to 102 cm) in front of the sofa.
So a full sleeper that's about 3′4″ (102 cm) deep closed needs roughly 5′10″ to 6′8″ (178 to 203 cm) of total depth when it's open. Here's the full picture:
Sleeper |
Closed (W x D) |
Clearance to open |
Total floor when open (W x D) |
|---|---|---|---|
Twin |
5′–6′ x ~3′ |
+ 2′6″–3′4″ |
5′–6′ x 5′5″–6′3″ |
Full |
6′6″–7′4″ x ~3′4″ |
+ 2′6″–3′4″ |
6′6″–7′4″ x 5′10″–6′8″ |
Queen |
7′–7′8″ x ~3′4″ |
+ 2′6″–3′4″ |
7′–7′8″ x 6′3″–7′1″ |
King |
8′+ x ~3′4″+ |
+ 2′6″–3′4″ |
8′+ x 6′8″–7′6″ |
Chalk or tape the open footprint on your floor before you buy. It's the cheapest reality check you'll ever do.
Also check the route in, not just the room:
- Doorways and hallways. A sleeper is heavy and rigid. Measure the narrowest point, including turns.
- Turning space. Can you swing it round a corner? Diagonal clearance matters more than door width.
- Wall clearance behind. Some mechanisms need the sofa pulled forward to open.
This is the section that saves you the return. The full sleeper sofa dimensions when open are the ones that trip people up, because they only measured the closed footprint.
US and EU sizes are not the same
If you're shopping across markets this trips people up fast. The names don't cross the Atlantic cleanly, and the sizes are close but not identical. Match by the centimetres, not the label.
What it's called |
US size |
Nearest EU size |
|---|---|---|
Single / Twin |
3′2″ x 6′3″ (97 x 191 cm) |
90 x 200 cm |
Double / Full |
4′6″ x 6′3″ (137 x 191 cm) |
140 x 200 cm |
Queen (US) ≈ King (EU) |
5′0″ x 6′8″ (152 x 203 cm) |
160 x 200 cm |
King (US) ≈ Super King (EU) |
6′4″ x 6′8″ (193 x 203 cm) |
180 x 200 cm |
The one to notice: European beds are usually a little longer (200 cm, about 6′7″) than a US full or twin (191 cm).
And a US "Queen" is closer to an EU "King" in width. So a Danish double and an American full are cousins, not twins.
The TEDDY Alternative: A Sofa That Becomes a Bed Without the Mechanism
If a hidden metal frame folding out of your sofa sounds clunky, our TEDDY modular corduroy sofa does the same job a different way.
TEDDY is built from pieces that reconfigure. Instead of a spring-loaded pull-out you rearrange the modules into a flat sleep surface. No mechanism to jam, no metal bar under your back at 3am.
Where to start:
- TEDDY Sofa (2-person): compact, for small flats and the occasional guest.
- TEDDY Plus: more seats and more sleep surface, better for regular hosting.
- TEDDY Corner Open and TEDDY Corner Closed: L-shaped setups with a bigger flat area to sleep on.
Picking the Right Size
Match the size to how often you'll actually use the bed, not the fantasy of a guest wing you don't have.
A full-size sleeper or the 2-person TEDDY covers you. One or two nights a year doesn't justify a queen mechanism eating your floor.
If someone sleeps there weekly, or you use it yourself, go bigger. TEDDY Plus or a queen sleeper gives you real comfort night after night.
Small flat vs open plan
Tight space?
Stick with a full sleeper or the 2-person TEDDY and measure that fold-out clearance carefully. Remember, sleeper sofa full size dimensions still need swing room to open. If you've got room to spread out, a TEDDY corner configuration or a queen sleeper earns its footprint.
For layout ideas, our guide to L shaped sofas for small spaces and our notes on sofa settings can help you plan.
FAQ
Is a full sleeper big enough for two adults?
Yes, cosily.
At 4′6″ (137 cm) wide it's the same as a standard double bed. Two adults fit fine. Two adults who both starfish will notice the width.
What's the difference between full and queen sleeper dimensions?
A full opens to 4′6″ x 6′3″ (137 x 191 cm).
A queen opens to 5′0″ x 6′8″ (152 x 203 cm), so it's about 15 cm wider and 13 cm longer.
The queen footprint is wider too, which matters in a small room.
How wide is a full sleeper sofa closed?
Usually 6′6″ to 7′4″ (198 to 224 cm), depending on arms and design.
The bed inside stays 4′6″, the frame and arms add the rest.
Do you need a special mattress?
Most sleepers come with a thin fold-out mattress sized to the frame. You can add a sleeper topper, but standard bed mattresses are too thick to fold. TEDDY sidesteps this since there's no frame to fold into.
