Another HND lounge access question
Hello FT'ers. Currently sitting in the CX lounge at SFO waiting for our JL1 departure in F. Had a question about lounges/ transiting HND. We are currently ticketed SEA > SFO > HND > CAN. We are F on the transpacific and J on the flight to China. We have about a 13 hour overnight layover in HND. Thought it was strange when we checked in at SEA that they could not check out bags through to CAN, but agent said we would need to retrieve them at HND and re-check them. Got me wondering about clearing security, tickets, lounges and the layover. My thought is when we land we will head to the transfer counters get our tickets and then be able to clear security and proceed to level 4 and the Sakura Lounge??? The more I read the more I feel this will not be possible?
Are we going to have to spend the night landside, or will we be able to clear security with our departure being 12 hours, next day, even though all on 1 ticket?
Can we check our bags 12 hours prior for next day departure?
Can we access Sakura lounge with a 12 hour layover?