beds comparison
Sofa bed vs Day bed
Evergreen URL: /compare/sofa-bed-vs-day-bed
In short
A sofa bed is a sofa that opens into a bed, with a fold-out mattress or seat cushions that become the bed. A day bed is a single bed frame shaped like a sofa, using a normal Single mattress. A day bed suits frequent sleeping; many sofa beds suit occasional guests. Check the open size in centimetres.
This comparison is about guest bed designs. Both give a room a seat by day and a bed by night. They differ in mattress, sleeping size and the floor space they need.
What is the difference between Sofa bed and Day bed?
A sofa bed is a sofa that opens into a bed, with a fold-out mattress or seat cushions that become the bed. A day bed is a single bed frame shaped like a sofa, using a normal Single mattress. A day bed suits frequent sleeping; many sofa beds suit occasional guests. Check the open size in centimetres.
| Criterion | Sofa bed | Day bed |
|---|---|---|
| How it works | Folds or pulls out from a sofa | A sofa-shaped frame around a flat single bed |
| Mattress | A fold-out mattress or the seat cushions | A standard UK Single mattress (90 × 190 cm); some take a Small Single |
| Sleeping size | Often opens to Double width; check the open size | Usually Single size; a trundle can add a second bed |
| Floor space | Needs clear space in front to open | The same footprint day and night |
| As a seat | Built as a sofa first | A deep seat on the mattress; cushions make a back |
| Moving parts | A mechanism to open, close and look after | Nothing to fold |
| Fire safety | Upholstered parts must meet the 1988 furniture fire rules | Upholstered parts must meet the same rules; the mattress has its own label |
Who is Sofa bed for — and who should skip it?
- You need a full-size sofa most of the time
- You want a Double-width bed for occasional guests
- There is room to open it out in front
Who is Day bed for — and who should skip it?
- Someone will sleep on it often
- You want a standard mattress with no folding
- The room is narrow, or you want a trundle for sleepovers
Frequently asked questions
Can you sleep on a sofa bed every night?
Some are made for nightly use, but many are made for occasional guests. Check what the maker says about daily use, the mattress depth and the mechanism.
Is a day bed a single bed?
Most day beds take a standard UK Single mattress, 90 × 190 cm. Check the exact size, as some take a Small Single at 75 × 190 cm.
What is a trundle?
A trundle is a second low bed on castors that slides out from under a day bed or single bed. It gives two sleeping places in one footprint.