I know they had them on the Veendam Alaska cruise…but I can't say I saw one…this is what it says on HAL's site:
Spa Suites & Staterooms
Opt for the serenity of a new Spa Suite or Stateroom, featuring modern spa amenities such as yoga mats, an iPod docking station, and a countertop water feature in-room. Also available are exclusive spa treatments from the nearby Greenhouse Spa and Salon.