Convertible cot beds: how they work and when to convert them

A convertible cot bed is one sleep space designed to support more than one stage of early childhood. Instead of replacing the entire bed as a baby grows, the same core frame can be adapted using approved components such as extension pieces, a larger mattress, adjustable mattress-base positions or removable side sections.

The exact journey differs between models. Before choosing one, understand every approved configuration, what is included initially, which parts or mattresses may be needed later and the limits that determine when each stage should end.

A cot is primarily a contained sleep space for babies. A cot bed is designed to continue beyond that first setup, usually by extending, lowering or opening the frame. A convertible cot bed can therefore reduce the need to introduce a completely different piece of nursery furniture at every stage.

The terminology is not always used consistently between brands. Before buying, check the stated configurations, dimensions, mattress requirements and age or developmental limits rather than relying on the product name alone.

The exact conversion process varies by model, so the assembly guide supplied with the product is the source of truth. At a practical level, the journey usually follows these steps:

Before converting your cot bed

• Identify the current configuration and the next approved stage in the product manual.

• Gather the matching extension parts, mattress, fasteners and support pieces before disassembly.

• Remove bedding and the mattress, then convert the frame exactly as shown in the instructions.

• Fit the mattress made for the new configuration and confirm that there are no unintended gaps.

• Check every connection, support and lock before use; re-check after the first few nights.

Move on when the age, weight or developmental limit for the compact configuration is reached, or earlier if the instructions require it. Sitting, kneeling, pulling up or needing more room may become relevant, but the product manual provides the definitive limits for the exact model.

Quick answer: Lower the mattress at the developmental stage specified in the product instructions, as your baby becomes more mobile and before climbing becomes possible.

A lower position keeps the cot sides appropriately high as sitting, kneeling and standing skills develop. Do not wait for an attempted climb if the instructions require the base to be lowered sooner.

There is no single transition age that suits every child. The change becomes more relevant when a child is attempting to climb out, has reached the cot's stated limit, or is ready to get in and out independently. The room now becomes part of the sleep space, so secure furniture, manage cords and blind chains, cover hazards and consider access to stairs before opening the bed.

Once you understand the complete conversion journey and the parts each stage requires, you can compare individual solutions. Stokke® offers two convertible cot-bed ranges designed to support changing sleep needs through early childhood: Nighti™ and Sleepi™.

Both provide a compact Mini starting point, a larger cot-bed configuration and a later open stage for toddler access. Their forms and adjustment options differ, so the right choice depends on the room, preferred design and the exact stage-by-stage bundle that suits your family.

Whichever range you choose, follow the instructions for the exact product generation and let the stated limits and your child's development guide every transition.