Transform the iconic Stokke Sleepi™ Mini from baby cot to children's bed with this extension kit in white. Suitable for children up to three years, the transition is made easy thanks to ergonomic extension parts, extending the length up to 127cm. Transform the iconic Stokke Sleepi™ Mini from baby cot to children's bed with this extension kit in white. Suitable for children up to three years, the transition is made easy thanks to ergonomic extension parts, extending the length up to 127cm.