Question for a friend who is Oneworld emerald. They (couple) booked the transit hotel HND royal something transit hotel, but was wondering if they are allowed to use the Sakura Lounge next to it the night before. ITIN as such: TSA-HND (on JL), overnight then HND-LHR (on BA First), so arriving around 7pm, the connecting flight is next morning around 8am. on website HND closes at 2:45am...Thanks in advance.