A sofa cum bed 5*6 opens to a bed about 5 ft wide and 6 ft long, which sleeps two people close together or one person with lots of room. Closed, it is usually a 2 or small 3 seater about 5.5 to 6 ft long.
The four common sizes are 3*6, 4*6, 5*6 and 6*6, always written as open width by open length in feet. Some sellers flip them and write 6*5 or 6*4, so ask for the open bed width in inches before you order. To check your room, open the size planner tool built into this page: enter the wall length and free floor and it tells you which size fits open.
The tables below cover sleeping capacity, closed and open dimensions, room space and mattress thickness. For designs in each size, browse sofa cum bed designs.
Sofa Cum Bed Size Chart: Who Each One Sleeps
| Open size (feet) | In inches | Sleeps | Closed as |
|---|---|---|---|
| 3*6 | 36 x 72 | One adult | 1 seater or narrow 2 seater |
| 4*6 | 48 x 72 | One adult with space to turn, or a parent sharing with a small child | 2 seater |
| 5*6 | 60 x 72 | Two people sleeping close | 2 to 3 seater |
| 6*6 | 72 x 72 | Two adults with space | 3 seater |
A regular Indian queen bed is about 5 x 6.25 ft and a king about 6 x 6.25 ft. So a sofa cum bed queen size is close to 5*6, and a sofa cum bed king size is close to 6*6, just a few inches shorter.
Sofa Cum Bed Dimensions Closed vs Open
Folded up, front to back it measures 30 to 36 inches, same as any sofa. Open, the bed reaches about 6 to 6.5 ft out from the wall.
| Size | Closed length (about) | Closed depth | Open, from wall |
|---|---|---|---|
| 3*6 | 40 to 46 in | 30 to 36 in | about 6 to 6.5 ft |
| 4*6 | 54 to 60 in | 30 to 36 in | about 6 to 6.5 ft |
| 5*6 | 66 to 72 in | 30 to 36 in | about 6 to 6.5 ft |
| 6*6 | 78 to 84 in | 32 to 36 in | about 6 to 6.5 ft |
Arms add 4 to 6 inches each to the closed length, so slim arms save space. Confirm both numbers on the shop tag.
Room Space Needed When the Bed Is Open
Plan for the open bed plus a walking strip of about 2 ft on the sides people use.
| Size | Clear floor from wall | Wall length needed | Smallest room it suits |
|---|---|---|---|
| 3*6 | 8 to 8.5 ft | 4 ft | Study, 8 x 9 ft |
| 4*6 | 8 to 8.5 ft | 5 ft | Kids room, 9 x 9 ft |
| 5*6 | 8 to 8.5 ft | 6 to 6.5 ft | Hall, 10 x 11 ft |
| 6*6 | 8 to 8.5 ft | 7 to 7.5 ft | Hall, 11 x 12 ft |
Move the centre table aside before opening; it usually sits in the bed's path.
Mattress Thickness and Foam for Each Size
- 3*6 and 4*6: 4 to 5 inch foam is enough for one sleeper.
- 5*6 and 6*6: 5 to 6 inches, so two people do not roll into the middle.
- Foam grade: HR at 32 kg/m³ suits guest nights; a nightly sleeper deserves a denser 35 to 40 kg/m³ block.
- Join line: on a two part bed, ask for the foam to meet without a gap.
Sofa Cum Bed 6*6 with Storage and Wooden Sizes
A sofa cum bed 6*6 with storage usually adds 2 to 3 inches to the closed depth, because the box sits under the seat. A wooden sofa cum bed 6*6 or 4*6 has the same open sizes, but solid wood arms are often wider, so the closed sofa gets longer. See storage models and wooden sofa cum beds.
Sofa Cum Bed 5*6 and 6*6 for Two Sleepers
These photos show the double sizes, open and closed, so you can judge how much floor they take.
- Seats
- 3 seater, opens 5*6
- Build
- Ply frame, poly fabric
- Fits
- Hall, 10 x 11 ft
Opened to 5 ft by 6 ft, this bed fits two people sleeping close. The seat cushions fill the front and the back cushions fill the gap.
Maker's note: Check the open width with a tape: 60 inches inside the frame, not including the arms.
- Seats
- 2 to 3 seater closed
- Build
- Ply frame, velvet
- Fits
- Hall, 10 x 11 ft
Closed, the same size is a sofa about 6 ft long. Slide it below the window of a 10 by 11 ft hall and a small table still fits ahead of it.
Maker's note: Keep slim arms of about 5 inches so the closed length stays near 6 ft.
- Seats
- 3 seater, opens 6*6
- Build
- Ply frame, linen
- Fits
- Hall, 11 x 12 ft
A full 6x6 that hides a bedding chest beneath its seat. Closed, it runs about 7 ft long, so it needs a full wall.
Maker's note: Gas struts and a laminate lined box keep bedding dry; ask for vent holes too.
Sofa Cum Bed 3*6 and 4*6 for One Sleeper
Single sizes fit studies, kids rooms and studio flats. A 4*6 gives an adult room to turn; a 3*6 is just enough.
- Seats
- 1 seater, opens 3*6
- Build
- Foam, cotton cover
- Fits
- Study, 8 x 9 ft
A 3 ft wide bed sleeps one adult comfortably for a few nights. Closed, it is an armchair of about 3.5 ft wide.
Maker's note: Fold foam in 32 kg/m³ HR grade or firmer stops the joins from dipping.
- Seats
- 2 seater, opens 4*6
- Build
- Ply frame, cotton
- Fits
- Kids room, 9 x 9 ft
At 4 ft wide, this bed takes a child and a parent for story time, or one adult with room to turn over.
Maker's note: Choose a stain resistant fabric and round corners; ask for a safety lock on the pull out.
- Seats
- 2 seater, opens 4*6
- Build
- Sheesham, cotton
- Fits
- Guest room
A sheesham frame with a wooden slat base opens to 4*6. The wide wooden arms make it about 5.5 ft long when closed.
Maker's note: Count slats: at least 10 for a 4 ft wide bed, spaced no more than 2 inches apart.
Questions buyers ask
Is a sofa cum bed 5*6 enough for two adults?
Yes for a couple who do not mind sleeping close. If both sleepers are tall or broad, a 6*6 gives each person about 3 ft of width.
What does sofa cum bed 6*4 mean?
Usually it is the same as 4*6: an open bed about 4 ft wide and 6 ft long. Sellers sometimes write length first, so confirm the width in inches.
Is there a sofa cum bed standard size?
There is no single standard, but 5*6 and 6*6 are the most common for halls, and 3*6 or 4*6 for single rooms.
Floor needed for a sofa cum bed 6x6: how much?
About 7 to 7.5 ft of wall and 8 to 8.5 ft of clear floor from the wall when open, including a 2 ft path.
Which sofa cum bed small size works for a studio flat?
A 3*6 or 4*6 click clack or fold out model. See single sofa cum bed ideas for chair beds and 2 seaters.
How thick should the mattress be?
About 4 to 5 inches for single sizes and 5 to 6 inches for 5*6 and 6*6, and never accept a foam slip below HR 32 kg/m³.