In the archive there is a model of a chair with a pouf
Chair dimensions 90x80x75
Pouf dimensions 35x60x30
Additional materials are applied to the spheres next to the model
The model is ready for turbosmooth smoothing, has the correct uv

I found three manufacturers with similar chairs:
https://e-mall.su/kreslo-lounge-giada/?sku=20184#item-tabs 
https://amaya-furniture.com/products/hippo-chair/ 
https://www.decotron.ru/cat/item/armchairs-dial-233/