Calla Modular SofaSmart design. Easy comfort. The Calla Modular Sofa delivers sink in softness with a frameless, foam based build that feels as good as it looks. Made entirely from dense foam, memory foam, and fiber fill no frame, no tools this modular design ships vacuum sealed in space saving boxes and expands fully within 24 hours. With wide arms, soft back cushions, and a grippy base that stays in place, it's lightweight, low profile, and endlessly flexible perfect