Yes, Disney is extremely strict about room capacity in 2026, primarily for fire safety and liability reasons. Most standard Disney resort rooms are capped at 4 or 5 guests (plus one infant in a crib). When you book, you must list every guest; the "MagicBand+" or "MagicMobile" systems used for park entry, room access, and Lightning Lanes are all linked to this roster. If you attempt to "sneak in" extra guests, they will not be able to use resort transportation, access the pool (which requires a band scan at most Deluxe resorts), or utilize the high-value "Early Theme Park Entry" perk. For 2026 travelers, if your party exceeds the limit, Disney’s system will force you to book a suite or two connecting rooms. They do perform "safety checks" and housekeeping entries, so exceeding the legal occupancy can result in being asked to leave or paying for an additional room at the current rack rate.