Sofa bed vs guest bed: which suits your spare room?
Updated
You have a spare room – or a study, or a corner of the lounge – and people occasionally need to stay. Do you fill it with a proper bed that waits for guests, or a sofa bed that earns its keep every day? There is no single right answer, but there is a right answer for your home. Here is how to work it out.
The short answer
- Choose a guest bed if the room is only ever a bedroom, guests stay often and for long stretches, and you have the floor space to give up permanently.
- Choose a sofa bed if the room has another job – study, TV room, kids’ play space – guests come a few times a year, or the space is too small for a bed to sit there unused.
In many homes the “spare room” is really a study or a TV room, and a guest bed sits in the way most of the year – which is why the questions below matter more than the price tag.
Five questions that decide it
1. How many nights a year will someone sleep on it?
Count honestly. Christmas, a couple of long weekends and the occasional friend after a party is often 15–25 nights. That leaves 340 nights a year where a guest bed is furniture you walk around. If guests stay every week – adult children home from uni, a partner on shift work, a regular visiting grandparent – a dedicated bed starts to make more sense.
2. What else does the room need to do?
A bed turns a room into a bedroom and nothing else. A sofa bed lets the same room be a study by day, a TV room in the evening and a bedroom when someone visits. In apartments and townhouses, where every square metre has to work, that flexibility is usually worth more than a slightly better guest mattress.
3. How much floor space do you have?
Compare the footprints. Standard Australian bed sizes are roughly:
| Bed | Mattress size |
|---|---|
| Single | 92 × 188 cm |
| King single | 107 × 203 cm |
| Double | 138 × 188 cm |
| Queen | 153 × 203 cm |
| King | 183 × 203 cm |
Add a bed frame (usually a few centimetres each way) and at least 60 cm to walk down one side. By day, a Nova Sofa Bed takes 200 × 100 cm (2m) or 150 × 100 cm (1.5m) – about the same floor area as a single bed, but you can sit on it.
4. Who are the guests?
Kids and teenagers sleep anywhere. Older guests often prefer a higher, firmer surface that is easy to get in and out of. A low foam sofa bed suits younger guests and people who like a firm surface; if your regular visitor has a bad back or knees, a standard-height bed may be kinder.
5. What is the budget?
A guest bed means a frame, a mattress and bedding. A sofa bed replaces two purchases – a sofa for the room and a bed for guests – with one. The Nova Sofa Bed starts at $840, and an L corner that sleeps two on a bed of about 200 × 200 cm starts at $1360.
Sofa bed vs guest bed at a glance
| Sofa bed | Guest bed | |
|---|---|---|
| Everyday use | Seating every day | Unused between guests |
| Floor space | Sofa-sized by day | Bed-sized all the time |
| Setting up for guests | A few minutes | Already made |
| Best for | Studies, TV rooms, apartments, occasional guests | Dedicated guest rooms, frequent long stays |
| Things to check | Sleeping surface, covers you can wash | Mattress quality, room to walk around |
What makes a sofa bed good enough to sleep on
The old complaint about sofa beds – a thin mattress folded inside a frame, with a bar across your back – comes from pull-out mechanisms. Foam sofa beds work differently: you take the back cushions down and lay them flat, so the sleeping surface is the same foam you sit on. When you compare sofa beds, look for:
- A flat, even surface with no bars, hinges or gaps.
- Dense foam. The Nova range uses high-resilience cold-cure foam (27 kg/m³ and 25 kg/m³) – firm enough to sit up on, soft enough to sleep on.
- Covers you can wash. Guests sleep directly on a sofa bed, so zip-off covers matter. Our guide to removable covers explains why.
- Nothing to break. No mechanism means nothing to squeak, jam or pinch fingers.
For a deeper look, read how to choose a sofa bed you will use every day.
Making a sofa bed feel like a real guest bed
- Use a mattress topper on the first night of a long stay – it adds softness and keeps the cover clean.
- Fitted sheets work on most foam sofa beds; a flat sheet tucked under also works.
- Give guests somewhere to put things: a small side table, a lamp and a hook on the back of the door.
- Keep the cushions you take off somewhere tidy – a corner, a cupboard or under a side table.
- Ventilate the room in the morning and fold the bed back into a sofa so the room is usable again.
When a guest bed is the better choice
Sofa beds are not always the answer. Choose a dedicated bed if:
- The room is used only as a bedroom and you never need it for anything else.
- Someone sleeps there most nights of the week.
- Your regular guest needs a standard-height bed to get in and out comfortably.
Planning a room that does both jobs
If you go with a sofa bed, plan the room around both of its uses from the start:
- Put the sofa where the bed works too. Check there is clear floor in front of the sofa for the bed, and that a door, desk chair or wardrobe will not block it.
- Choose a desk you can push back. In a study, a narrow desk against the opposite wall leaves the middle of the room free for the bed.
- Light both ways. A reading lamp next to the sofa doubles as a bedside lamp; a dimmable ceiling light helps late arrivals.
- Store bedding close by. A lidded basket or the bottom shelf of a cupboard keeps sheets, pillows and a topper ready, so setting up takes minutes.
- Window coverings. Block-out blinds or curtains make a study feel like a bedroom at 6 am in summer.
Quick decision checklist
- Fewer than about 50 guest nights a year → sofa bed.
- The room has a second job (study, TV, play) → sofa bed.
- Small room or apartment → sofa bed.
- Guests most weeks, or a guest who needs a high bed → guest bed.
Browse sofa beds, check what is in stock in Melbourne, or measure up with our size guide.
Frequently asked questions
Is a sofa bed comfortable enough for regular guests?
A foam sofa bed with a flat, even surface and dense foam is comfortable for regular use. Avoid sofa beds with bars or hinges under the mattress, and choose covers you can wash between guests.
Does a sofa bed take up less space than a guest bed?
By day, yes. A 2m Nova Sofa Bed is 200 × 100 cm – about the floor area of a single bed – and you can sit on it. As a bed it needs more floor space, so measure for both.
Can two people sleep on a sofa bed?
It depends on the size. The Nova 2 × 2m L corner makes a bed of about 200 × 200 cm, which suits two adults. Check the bed dimensions of any sofa bed before you buy.
Do I need a special mattress protector for a sofa bed?
No special product is needed. A fitted sheet or a mattress topper works on most foam sofa beds, and zip-off covers can be washed between guests.
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