Originally Posted by
raph
Book the NX Coach departing at 9:05 - arriving at 9:55. That gives you
1 hour for arrival and baggage reclaim and a further 40 minutes for delays and checking in at LGW - perfectly doable IMHO, have a little faith.
Note that they'll let you use earlier coaches if you are outside prior to the 9:05 departure.
By the way: 180 Minutes is BA's valid connection time. Since you're over that, nobody is going to rebook you - and - as above, I doubt that it's necessary.
Relax, enjoy your holiday, and start worrying if things go wrong - not before. ^