Who sells foam rubber as used in mattresses

Does anyone know who sells foam rubber? In the Brest / Morlaix / Carhaix area?

I’m trying to fit -out a VW Caddie van as a campervan. The width I need is wider than a single bed mattress but not as wide as a double bed.

Just the foam cut to size without fabric cover would be ideal.

There is a shop in our big town that sells it, look for a tapisserie near you, but prob easy via internet

https://www.morel-mousse.fr/web/decoupe-de-mousse-sur-mesures.php?gclid=EAIaIQobChMIjaPO38WD8gIVhfhRCh1iLQ4jEAAYASAAEgLW3_D_BwE

https://www.artapisserie.fr/rectangle-et-carre-de-mousse/8816-mousse-sur-mesure-haute-resilience-densite-35-kg.html?gclid=EAIaIQobChMIpPSXnsWD8gIVhelRCh1mPQoWEAQYBiABEgJTNPD_BwE