Thanks to all for your insight. Although I'm still trying to work out what "cotton kills" might mean

Haven't booked anything yet, still looking at all the options. Someone suggested we might just want to fly to Fairbanks for an overnight if the aurora is our top wish. I've been following the aurora predictions but apparently need to be closer in to see where best to view them.

Still keen to meet up for a coffee or a drink, whichever we eventually decide.