Modular sofa

A modular sofa, comprising:

• at least one pull-out sofa bed module, wherein the pull-out sofa bed module comprises a second base portion, a second backrest portion, and a pull-out portion, wherein the second backrest portion is configured to provide leaning support for a user, the pull-out portion may be extended and retracted relative to the second base portion, when the pull-out portion is pulled into the second base portion, the pull-out sofa bed module is used as a sofa, and when the pull-out portion is pulled out of the second base portion, the pull-out sofa bed module is used as a sofa bed;
• and the second base portion and the second backrest portion are connected through a first type of connecting member;
• and
• at least one module of a single seat module, a corner seat module, an ottoman module, and a love seat module, wherein the pull-out sofa bed module, the corner seat module, and the love seat module are connected through a second type of connecting member;
• wherein the second type of connecting member comprises a second inserting slot and a second inserting head matched with the second inserting slot;
• wherein the second inserting slot comprises a first inserting slot wall, a second inserting slot wall, and a third inserting slot wall that are sequentially arranged in parallel, and a connecting wall connected to the first inserting slot wall, the second inserting slot wall, and the third inserting slot wall, the connecting wall being located below the slot walls when assembled;
• wherein the second inserting head has the same structure as the second inserting slot, and the connecting wall of the second inserting head being located above the slot walls when assembled.