Are there bed rails available for toddlers?
None of the cruise lines seems to provide large bed bars like you would use at home for a toddler. I suggest bringing your own — you can buy a collapsible one from Safety 1st. Since they are collapsible, they will fit into a large suitcase for travel purposes. My daughter used to fall out of the beds a lot on ships, so we carried the bed bar with us for many years!