CORT makes it easy to buy folding sofa units. At the CORT Furniture Clearance Centers, you can buy folding sofa units for less.
http://www.cort.com/furniture-clearance/by-type/folding-sofa ...

The Largo sofa - stand-alone seating units that connect easily - spacious, soft seats - curvy armrests
http://www.boconcept.us/Sofas-74370.aspx

Please call us if you are after a corner sofa on 0845 400 2222 ... Sofa.com, Unit 35 Chelsea Wharf, 15 Lots Road, London, SW10 0QJ
http://www.sofa.com/corner-sofa.cfm

Sofas from Intosofa, providing Sofas and chairs that go into your home easily. Selected sofas and chairs available next working day if ordered before 11am on a working day.
http://www.intosofa.com/cornerunits.asp

Selected sofas and chairs available next working day if ordered before 11am on a working ... Elegance Corner Unit
http://www.intosofa.com/sofas.asp