Where does felt go in a mattress?

It sits directly above and below the spring core, between the springs and the comfort foam — see the full layer breakdown above.

Which mattress types use felt?

Bonnel-spring, pocketed-spring and foam mattresses all use felt. In spring mattresses it insulates the springs; in foam mattresses it adds support and stability.

What does the felt layer actually do?

It stops the springs from being felt through the surface, distributes body load evenly, dampens noise from the springs, and helps the mattress keep its shape and firmness as it's used.

TULSI OVERSEAS Non-Woven Felt

Felt for Mattresses

How non-woven felt is used as the insulating layer in bonnel-spring, pocketed-spring and foam mattresses.

Exploded view of a pocketed-spring mattress showing quilted fabric, memory foam, recycled needle-punch felt, and pocket spring core layers

The hidden layer that holds a mattress together

In a quality mattress, non-woven felt is the insulating layer between the springs and the comfort foam. It is the component you never see but always feel the benefit of.

The mattress stack

A typical pocketed-spring mattress is built up like this:

Knit fabric quilt (the cover you touch)
Memory foam comfort layer
Felt insulating layer ← Tulsi Overseas felt
Pocketed spring core
Felt insulating layer ← Tulsi Overseas felt
High-density foam base
Base fabric

Why felt, and not just foam?

The felt layer insulates the springs (so you don’t feel them), distributes load, reduces spring noise, and stabilises the mattress so it holds its shape. The same principle applies to bonnel-spring and foam mattresses.

We make felt to your specified GSM, width and thickness, so it drops straight into your build.

Frequently asked questions

Where does felt go in a mattress?: It sits directly above and below the spring core, between the springs and the comfort foam — see the full layer breakdown above.
Which mattress types use felt?: Bonnel-spring, pocketed-spring and foam mattresses all use felt. In spring mattresses it insulates the springs; in foam mattresses it adds support and stability.
What does the felt layer actually do?: It stops the springs from being felt through the surface, distributes body load evenly, dampens noise from the springs, and helps the mattress keep its shape and firmness as it's used.