This is a standard Modern Sofa that is quite optimized for scenes that require low draw calls. All 3 sofas share the same material, no need to add more materials to it. All of them are low poly but with realistic details, good normal map baking and small boost in the texture details.

Modern Sofa 3 seats:

LOD 0 - 15,680 tris

LOD 1 - 5,978 tris

LOD 2 - 1,547 tris

Modern Sofa 2 seats:

LOD 0 - 13,092 tris

LOD 1 - 4,792 tris

LOD 2 - 1,002 tris

Modern Sofa 1 seat:

LOD 0 - 6,664 tris

LOD 1 - 2,698 tris

LOD 2 - 754 tris