How long can my baby use a hauck bedside cot? The hauck bedside cots and co-sleepers are suitable for babies from birth up to 9 kg and approximately 9 months. Related articles How long can my child use a hauck travel cot? What is a bedside cot / co-sleeper? How can I claim my hauck product? I have a problem with the assembly and folding of my hauck travel cot. What is the correct order?