When I made my arrangements, the lady told me that the only way to guarantee a specific time for delivery would be to add a $32.50 charge. She told me that they recommend that you have your item delivered the day before whenever possible and they will note that it is requested to be in the room on arrival. If you check-in before you can actually occupy your room, they will deliver the item when they deliver your luggage...usually while you are out and about exploring or visiting a park. If you are going right to your room, it will be delivered shortly thereafter. If you want it delivered while you are out, simply drop off your luggage in your room and then wander about the resort exploring (which is what we will be doing)! You might want to slip the CM a note at check-in letting them know it's a surprise and that you want it delivered after you have had time to visit the room first. Hope this info helps!
Beth