Sorry your train journey was crappy - it's amazing how some people act in public. When I went to visit my big bro last week the train was packed with rival (very drunk) football supporters, and subsequently police. Fun.

But, sheets: YES! The trick is to have a darker bedsheet on the mattress and first two pillows, then lighter for the duvet/top pillows, or vice versa depending on your preferences. It's a science.