My mother is cruising with us on this cruise. She has sleep apnea and has one of those machines she uses at night. She uses distilled or purified (not sure the difference) water in the machine. If I fill out the medical form and fax it in will they have that water available for her in the stateroom along with an extension cord? Do we need to bring our own water & extension cord? Is there a cost for this? Thanks for answering my questions.