I am doing my first Camino end of August when I guess it will be hot but dont expect to finish until 29/30 September. I am told there are blankets along the way and I have a Thermolite Reactor (supposed to add 8 degrees to a sleeping bag) plus a silk or cotton liner. In the interests of keeping it as light as possible(I am 72) will I be ok? I am planning to carry the minimum to give myself the best chance of completing it. I hike a lot at home in New Zealand.