Transformation mechanisms for daily sleep can vary depending on the sofa model. However, there are several most common types of transformation used to turn a sofa into a bed. Here are some of them:
| Mechanism Name | Description | Models | Notes | |
| Eurobook (Euroknizhka) | The mechanism is extremely simple and reliable, making it an ideal option for everyday use. Simply pull the seat forward as far as it goes and lower the backrest. This creates a flat surface. There is access to storage niches. | Warsaw, Lisbon, Milan, Dortmund | Exception: “Belfast” and “Dallas” use PU foam filling — classifying these for “daily sleep” is at the buyer’s discretion. | |
| Aleko | Forward-folding mechanism: 1) pull the handle located between the seat and the backrest, slightly turning the seat 45 degrees; 2) hold the handle with one hand and the edge of the seat with the other, pulling the structure towards you; 3) lower the backrest. | Verona II, Lisbon II, Liverpool II, Milan II | *requires a topper | |
| Walking mechanism (Pantograph) | A modern version of the “Eurobook”. You need to slightly lift the seat, pull it towards you, and lower the backrest. Includes niches for storing linen. | Liverpool, Preston, Tokyo* | *has a divided seat cushion | |
| Swivel (Turn) mechanism | One of the best options for daily use. A corner sofa easily transforms into a full-fledged double bed. The movable part simply changes position from perpendicular to parallel. These models have pull-out drawers for linen. | Marcos, Montero, Auckland | ||
| Click-Clack | Lift the seat to 90 degrees (the backrest will lower automatically) and tilt it away from you until you hear the characteristic “click-clack” sound. Then tilt the movable part toward you and lower it. | Oslo | *requires a topper | |
| Pull-out mechanism | Pull the lower part of the seat towards you and unfold the seat like a book. A flat surface is formed, but it will be lower and firmer than other mechanisms. The advantage is the forward unfolding. | Delhi, Santi | *requires a topper | |
| Side Ottoman (Puff) | Move the ottoman tightly against the corner sofa. | Verona Corner I | ||
| Dolphin | To unfold the “Dolphin,” pull the hidden handle under the seat forward until a special section hidden beneath the seat is extended. This forms a large and comfortable sleeping area. | Verona Corner II, Verona, Nelson |