When will the speakers arrive at the airport? [br] [originaltext]M: How long be

M: How long before we land? Do you know?
W: It’s three o’clock now, so there is still an hour left before we reach Kennedy Airport.(56)Why don’t you get some shuteye in the meantime? I’ll wake you up when we get there.
M: Thanks, I hope you don’t mind. I stayed up way past midnight putting together the presentation I am going to make today.(57)I am a bit worn out.
W: No problem. Here, why don’t you make yourself more comfortable, and put the seat back to stretch your legs out?(58)You will feel much more relaxed.