Heading up for a two-nighter from 10/02 - 10/04 for my first time to the summit. Looks like it's going to be pretty cold, report shows chills as low as 10 degrees this week. I've got lots of layers (base, mid, fleece, puffy, shell), a pair of gloves and a beanie, but is there anything anyone wishes they would have brought or did bring to make sure warmth wasn't an issue? I've also got a 20 degree down sleeping bag as well as a liner.