* Adjustable 3 position base* Teething rails ensure delicate teeth are protected* Suitable from birth to approximately 18 months* Requires a mattress approx 100cm x 50cm* Mattressnot included* Full assembly required This cot is perfect for a compact living space with it's space saving design. You little one's sleep is covered as they grow from birth to approximately 18 months old. You have full range to adjust the height of where the mattress sits to assist your baby in the easiest way!