3 a.m.
It pays to keep hustling , you know . `` Whew ! how cold it was that night . The train west left at 3 a.m. Heavens ! how cold my room was . A hardware man had never even slept in it , to say nothing of its ever having known a stove . The windows had whiskers on them long as a billy goat 's ; the mattress was one of those thin boys .