what age is this Traverze suitable for and will the seat lie down for sleeping

Hi Ruth, thank you for your enquiry, the Traverze is suitable from 6mths plus as it can go almost flat. We hope this helps.  if you follow the link https://www.babyonthemove.co.nz/store-locations/ this will take you to our online store finder. Here you can find contact details for your nearest Baby On The Move Store where one of our team experts will be happy to assist you in your product search and help answer any further questions you may have. We hope this has helped with your query.