With three adjustable height positions you can make sure your baby is as comfortable as possible. As they grow and learn to sit and stand you can lower the mattress base so they can stay safe and you can pick them up easily. This cot bed is built to last. The teething rails protect your baby's gums once they start to explore and chew the bars. When they are old enough it will convert to a junior bed. 3 position adjustable mattress base - allows you to lower the height of the mattress as your baby learns to sit and stand. Teething rails - protects your baby's gums once they are teething and have started to chew. Converts to junior bed. Cot specifications: Size L76.5, W143.5, H98.5cm. Weight 37.45kg. Mattress features: Mattress size L70cm, W140, . Mattress not included. General information: Suitable from birth. Self-assembly.