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Most people in India are not choosing a mattress from scratch. They are replacing one — usually a coir mattress that has gone lumpy, or a spring mattress that has developed a dip in the middle. So the useful question is not "which is best", it is "what will actually change if I switch".
Here is a straight comparison.
Coir and cotton
Coir is made from compressed coconut fibre, often with a cotton layer on top. It is cheap, it breathes well in hot weather, and it is firm from day one.
What it does well: airflow. In a Chennai or Nagpur summer, a coir mattress stays cooler than almost anything else. It is also the least expensive option by a distance.
Where it falls short: coir compresses. After two or three years the fibre packs down unevenly, usually fastest where the heaviest person sleeps. You end up with a dip, and the dip pulls your spine out of line every night. Coir also does nothing to absorb movement — if your partner turns over, you feel it.
Spring
A spring mattress has a steel coil core under padding. Bonnell springs are the common, cheaper type; pocket springs are individually wrapped and better.
What it does well: bounce and edge support. You can sit on the edge of a spring mattress without it collapsing, which matters if you use your bed as a sofa.
Where it falls short: springs are springs. They push back uniformly rather than adapting to your shape, so your shoulders and hips carry pressure while your lower back gets left unsupported. Over time individual coils weaken and you get the classic middle sag. Bonnell springs in particular transfer movement across the whole mattress.
Memory foam
Memory foam softens slightly with body heat and moulds to your shape, then returns when you move.
What it does well: pressure distribution and motion isolation. Instead of a few points taking your weight, the load spreads across the surface. And because the foam deforms locally rather than globally, movement on one side of the bed stays on that side.
Where it falls short: plain memory foam can sleep warm, and on its own it is too soft for proper spinal support. This is why a good foam mattress is layered — a memory foam comfort layer over a firmer support core, under a breathable knitted cover.
So what actually changes
If you are moving off coir or an old spring mattress, three things usually change in the first two weeks:
- Fewer pressure points. Side sleepers notice this first — the shoulder and hip stop aching.
- Less partner disturbance. The biggest, most underrated difference. You stop waking up when they do.
- No dip. A layered foam mattress does not develop the centre sag that coir and spring both do.
One thing that does not change instantly: comfort. A new mattress often feels wrong for the first few nights, even when it is the right one. Your body has adapted to the old dip. Give it a week before you judge it.
Which Mattressoo mattress fits which switch
Coming off coir and want support without a hard surface — the TrueOrtho Smart Series, a medium-firm memory foam core with an Ortho Relief Form layer.
Coming off a sagging spring mattress with a back that already complains — the OrthoCare Therapeutic Hybrid, memory foam over a firmer therapeutic relief core.
Not sure what you want yet, or two people who disagree — the Ultra Reversible, with two different comfort surfaces you can flip between.
Six questions on our mattress finder will narrow it to one. And every mattress comes with a 15-day risk-free trial, which is the only way to really know.
