The eton expandable will take your little one from birth through toddlerhood and beyond the eton expandable converts from a cot bed suitable from birth through to a toddler bed and when little one has outgrown that converts into a full size single bed conversion kit required features converts from cot bed to toddler bed and then a full size single bed conversion kit required cot bed suitable from birth to around 3 years toddler bed suitable to around 5 years full size single can be used