I was booking tickets for inter-city express buses last night and saw that they were having a sale on some bus lines .
from usually 6000yen (up to 8000yen) for an adult —-> reduced to 1500yen.
intercity express buses run overnight on the expressways (think autobahn - but people obey the speed limit mostly)
so, overnight bus - save on accommodation, also cheap travel save on expensive shinkansen tickets.
i usually arrive too early to check in to airbnb so I just check my luggage into a luggage locker at the station (always plenty) which cost 300-500 yen. then head out for the day for sightseeing.
I usually fly in to Narita in the early evening. get a train to Ikebukero or Tokyo stations where the bus departs, go have some dinner, and couple of beers. then get on the bus and snooze.
the night buses have fixed closed curtains so it is quite dark and you are not disturbed by outside lights.
here is a screen dump of tickets for tickets from tokyo to Kyoto
I use this page to translate my name to Katakana for the booking.
This deal is only for travel until 30/11/2018.
hope this assists someone.
With bonus typhoon?