Hi there, Missy!
Walt Disney World Resort hotels do come stocked with travel-sized bottles of common toiletries; based on the class of hotel - Value, Moderate, and Deluxe - you might find the brands differing from one another, and some amenities are placed in Deluxe rooms that are not offered at the others (lotion, mouthwash, shower cap, shower gel, etc.).
Disney's Caribbean Beach Resort is a Moderate, and features the following travel sizes: shampoo, conditioner, bar soap (note: not shower gel), and a facial bar. Occasionally, lotion will be provided, but that is not always the case.
Every room is equipped with a hair dryer, It's reasonably powerful, but if you prefer a strong blast for your hair, you might consider packing your own.
When I stay at a Moderate, I'll always bring my own shower gel and bath pouf, facial products, and a small lotion. Because no dental hygiene products are offered, those are a given in my bag, too, as are cotton swabs and sunscreen.
When I travel with children, I've learned to pack children's pain reliever, allergy medicine, Band-Aids, and antibiotic cream. A rudimentary first-aid kit has come in handy on more than one occasion.
And if you forget anything, you'll find that Housekeeping can generally provide you with the basics, or you can head over to the shops in Old Port Royale and stock up.
Have a wonderful time!
See you later, celebrator,
-Deborah B.