Which crossing are you doing Rich? Plymouth to Santander is only 18 hours or so and only one night on board. If you're going to Bilbao or from Portsmouth then it's 2 nights on board I think. I've done the shorter one half a dozen times and find, once you're on board, showered and changed, it's time for a beer and some food. Then either a few more beers or a coffee and a movie onboard. Bed or read a book/mag, sleep, breakfast, walk round the decks, another power nap and you'll be off in no time. WiFi on board is rubbish unless you pay. Don't use the phone onboard unless you're in port as the charges are horrific. I can look at paper maps for ages so I take one and plan routes etc.
If you're feeling sociable there will be plenty of fellow bikers on there to chat to. Believe me, it won't be difficult to recognise them
