If you’ve lived in India the past few years, you’ve probably noticed this: summer nights are hotter, and winters feel surprisingly chilly. That’s exactly why we made it a priority to design a mattress that’s weather-friendly—one that doesn’t trap heat in May or feel icy in January.

We put different materials through the wringer. Here’s how each one performs when the weather swings:

1. Memory Foam

Memory foam is a fan favourite for its orthopedic support and comfort. But when it sits right under the surface, it tends to trap heat. Our solution? We never use it as the top layer. Instead, we tuck it into the middle layer, where it works beautifully without warming you up. That’s exactly how we designed the Sunday Ortho Plus Mattress.

2. PU Foam

PU foam and memory foam are like close cousins—similar components, but slightly different characteristics. PU foam is lighter and cost-effective, making it perfect as a supportive base. We use it smartly in the lower layers of our Ortho Plus to keep things breathable and balanced.

3. Rubberised Coir

A longtime favourite in South India, coir mattresses do offer decent back support. But they don’t last long. Within a couple of years, most coir beds start to sag—and in humid climates, they tend to absorb moisture and get musty. In the long run, they’re not the best investment.

4. Spring Mattresses

Whether it’s Bonnell or pocket springs, metal-based mattresses don't change much with the weather. But there’s a deeper concern—metal components can disrupt the natural energy flow in your sleep space. Plus, spring mattresses wear out faster than high-quality foam beds. That’s why we’ve never gone down that route.

5. Latex Foam

Now we’re talking. Natural latex foam is breathable, adaptive, and naturally temperature-neutral. It doesn’t trap heat in summer or feel cold in winter. It’s also hypoallergenic and durable—ideal for Indian weather. The only catch? It’s expensive and hard to manufacture well. That’s why we import the best latex and cut out middlemen to make our Latex Plus Mattress surprisingly accessible.

So, what’s the best pick for Indian weather?

We don’t push one material over another—but natural latex stands out when it comes to weather adaptability, comfort, and long-term health. It’s engineered for real rest, no matter what the forecast says.

Explore Sunday’s full mattress range or take a closer look at our top picks:

Need help picking the right one? Just drop us a message. Our in-house sleep experts are always happy to guide you.