Modular sofa. You can make any configuration. There is a lifting mechanism for legs with control

Another models this series:
Armchair with Foot lift
https://3dsky.org/3dmodels/show/armchair_with_foot_lift 
2-Seater Modular Sofa with Foot lift
https://3dsky.org/3dmodels/show/2_seater_modular_sofa_with_foot_lift 
3-Seater Modular Sofa with Foot lift
https://3dsky.org/3dmodels/show/3_seater_modular_sofa_with_foot_lift 
4-Seater Modular Sofa with Chaise and Foot lift
https://3dsky.org/3dmodels/show/4_seater_modular_sofa_with_chaise_and_foot_lift 
5-Seater Corner Sofa with Chaise and Foot lift
https://3dsky.org/3dmodels/show/5_seater_corner_sofa_with_chaise_and_foot_lift