Eurostar overnight service any good?

[ATG]

Am thinking of taking the Eurostar to get to the Alps ... probably to Bourg Saint Maurice. There's an overnight service, but it doesn't look like there are sleeping berths on the train ... which is a bit odd. Anyone done this journey? Are the reclining seats any good? Did you get any sleep? Any advice much appreciated ...

[miniandy]

It's a party train apparently, just one big bar! Or so I hear...

[boiler]

I hope so - after many years of sitting in traffic from Geneva/Lyon to Tignes, I have booked the train this year. Also allows you to ski both saturdays, which is a bonus.

[ATG]

Am I right in thinking there are two trains ... the ski train and the snow train, the latter being the mobile disco pissatorium?