If you're buying a foam mattress in South Africa right now, you're walking into a market full of noise. Every shop says theirs is the best. Every brand throws around words like "orthopaedic" and "high-density" without explaining what any of it means. And the prices are all over the place, the same kind of mattress can cost R2 500 in one place and R9 000 in another.
I run a foam mattress business. I make them, I sell them, and I've seen what people get wrong when they buy. So here's the straight version. No fluff.
First, what is a foam mattress actually?
A foam mattress is built from layers of foam instead of springs. That's it. No coils, no metal. The feel and the support all come from the type and density of the foam inside. There are three main kinds you'll run into in South Africa:
Standard polyurethane foam (PU foam). Your everyday foam. Budget-friendly, light, fine for a spare room or a kid's bed. The cheap ones go soft fast. The good ones, high density, last for years.
Memory foam. Moulds to your body and slowly comes back. Great for pressure relief, sore shoulders and hips. It holds a bit more heat, so in a hot Bloem summer you want a good cover and decent airflow.
High-density / orthopaedic foam. Firmer, more supportive, made to hold your spine in line. This is what most people with back problems actually need, not a soft pillow-top that swallows you.
Most good mattresses use a combination. A firm support base, a comfort layer on top. The mix is what makes the difference.
The one thing that matters most: density
Forget the marketing words for a second. The single most important number on a foam mattress is density, measured in kg/m³. It's what decides whether your bed still feels good in five years or sags in the middle by next winter.
- Under 21 kg/m³, cheap, soft, short life. Spare room or occasional use only.
- 21 to 28 kg/m³, solid everyday foam. Good value for most people.
- 30 kg/m³ and up, high density. Firm support, long life, what you want for a main bed or a bad back.
When a shop can't tell you the density, that tells you something. Walk on.
Firmness: soft, medium, or firm?
Firmness is not the same as support. As a starting point, match firmness to how you sleep:
- Side sleepers, medium to medium-soft. Your shoulder and hip need to sink in a bit or you'll wake up sore.
- Back sleepers, medium-firm. Enough give for comfort, enough push-back to keep your spine straight.
- Stomach sleepers, firm. A soft bed lets your hips drop and wrecks your lower back.
- Heavier sleepers, firmer and higher density. You need more support underneath you, simple as that.
If you share a bed and you sleep differently, go medium-firm. It's the fairest middle ground for two people.
What size do you need?
- Single, 92 x 188 cm. Kids, single adults, small rooms.
- Three-quarter, 107 x 188 cm. A bit more room for one person.
- Double, 137 x 188 cm. Two people, tight.
- Queen, 152 x 188 cm. The sweet spot for most couples.
- King, 183 x 188 cm. Two people with space to actually sleep.
One tip from experience: if you've got the room, size up. Nobody ever complained their bed was too big.
Back pain: what foam actually helps
A foam mattress can genuinely help back pain, but only if it does two things: keep your spine in a neutral line, and take the pressure off the points that dig in. For most back pain you want high-density foam with a medium-firm feel, firm enough to hold your spine, with a comfort layer so your hips and shoulders aren't grinding into a plank.
If your pain is serious or ongoing, see a professional. A mattress helps, but it's not medicine.
How much should you pay in South Africa?
Real talk on price, in rands, for a quality foam mattress (queen size benchmark):
- R2 000, R3 500, entry level. Fine for a guest room or a tight budget.
- R3 500, R6 000, the sweet spot. Good density, proper support, lasts. Where most people should shop.
- R6 000, R10 000+, premium. Thicker, higher density, better covers and longer warranties.
A lot of what you pay in a franchise store is markup, showroom rent and brand name, not foam. Buy direct from a maker and the same quality often costs a third less.
How to tell a good foam mattress from a bad one
- Can they tell you the density? If not, walk.
- What's the warranty? A maker who trusts their foam gives you years, not months.
- What's the cover like? Removable and breathable matters, especially in our heat.
- Does it have a proper support base, or is it one block of soft foam? Layers matter.
- Can you feel it or get a trial? You should be able to test it.
The honest bottom line
Get the density right. Match the firmness to how you sleep. Buy the right size. And buy from someone who knows their product and stands behind it. You spend a third of your life on your bed, it's one of the few things worth getting right the first time.
Browse our foam mattresses here, or talk to us and we'll tell you straight what you actually need.