We are planning 3 nights in Yosemite and 2 in Sequoia/KC. in early October. Would the cabins be too cold at that time of the year? I see that they have a heater but does it make it warm enough to sleep comfortably. My other question is able the length of stay. Are two nights enough or too much? We like doing short (<3 mi) hikes and sightseeing. Oh and back to lodging, am I correct in thinking that it is better, time wise, to stay in the park? Thanks so much!