There is also an armchair in the collection for this sofa:
https://3dsky.org/3dmodels/show/kreslo_mons_wagon 
It can be purchased in the online store skdesign.ru .Folding.
Dimensions:
Depth: 114 cm
Width: 206 cm
Height: 95 cm (on top of pillows)
Link:
https://skdesign.ru/product/mons-wagon-3?pa_overall-width=08-5&pa_fabric=146-sm