Quoting techie1983
I wanted to know that how are the trains here in Europe? I mean are all of them chair cars or do they have bunks to sleep in as weel for the night journey?
International night trains have bunk beds; other trains are regular seats only.
Also can anyone tell me the meanings of "SparNight", "Ligplaats", "Zitplaats", "Bedplaats", etc. I found these on the nshispeed website and am not sure if they have something to do with the type of seating that is provided in the trains.
I have no idea about "SparNight" - it isn't Dutch. Googling however tells me that it's German, meaning as much as "night saver", available both for regular seats and for "sleeper berths".
"Zitplaats" is just a regular seat.
"Slaapstoel" is a reclining seat.
"Ligplaats" is a bunk bed (either 6 or 4 people (or sometimes 2, I think?) to a cabin). If you change the language to English with the select box in the upper right corner, it's translated as "couchette". (Which, to answer your second post, is French and means as much as "bunk" or "berth".)
"Bedplaats" is a bed, and due to them adding "1 pers." behind it (plus the higher price), I think that might be a private cabin. The English translation they give themselves is "Sleeper".
(And yes, the nshispeed website sucks.) 
Ah, here's the page on the website which explains the different classes!
[ Edit: Edited on Jan 2, 2009, at 3:22 AM by Sander ]