Is the skypark swimming pool of Singapore Sands Hotel open to hotel guests unlimited times? Please explain, thank you ~

If you book a room inside, it should be ok, because we also booked a room, five or six people went swimming, and then ran up and down several times. The swimming pool can be entered with the hotel room card, and it can be shown to the staff at the entrance of the swimming pool. The hotel elevator must be swiped with the room card.