No, you cannot stay overnight at Disney Castaway Cay, as it is a private "day-use" island exclusively for Disney Cruise Line guests. There are no hotels, villas, or guest rooms on the island. In 2026, the island remains a temporary paradise where ships dock for the day, typically from 8:30 AM until around 4:45 PM. While you cannot sleep there, you can rent private day cabanas at Family Beach or Serenity Bay (the adult-only beach), which provide a luxurious "home base" with comfortable seating, a fridge stocked with drinks, and a freshwater shower. These cabanas are incredibly popular and often sell out 120 days in advance to Concierge and high-tier Castaway Club members. The only people who stay on the island overnight are a small crew of approximately 60 to 100 permanent staff members who maintain the facilities and live in a hidden "crew village" away from the guest areas. All passengers must return to the ship before it sets sail for its next destination in the late afternoon.