In the morning got up at 5am. Did not get a lot of sleep that night, because it was really hot in the room. And the other guy came back drunk at 2:30 and snoring all night long. So I was happy to leave the room.
On the way to the commuter train station I bought something to eat right in front of it, because there was an old lady selling home-made rolls. That would be fine for the long bus ride.
Coming to the main bus station there were not many people, so I set outside right at the platform and enjoyed the morning sun. When the bus arrived I checked in my luggage and went to my seat. The seat besides mine was empty, so I could use the extra space. The bus drove eastward to Bialystok first to pick up some people. I used the first part of the right to get some sleep. And at each longer stop I went off the bus to stretch my legs.
Right before the border to Lithuania a young lady came who booked the seat besides me. Well could have been worse.
We made a stop at Mariampole and Kaunas. And finally after 12 hours ride reached Riga.