Nice report on Tunnel Hill. Amazing that you finished by the light of the moon, and with a frozen water bottle! Very uplifting report. Thanks.
It was indeed. one comment: air mattresses dont insulate so if temperature is a factor you may want to go with a cushier pad, they make a variety all the way up to super cush.
I've got a polar sleeping bag if needed. I'd rather have the cush.
My heartfelt congrats for a good run, and apologize for digressing.
So I'm only addressing those readers without extensive camping experience, (chances there are zero?) a 'polar' bag would be mighty uncomfortable in 45 -50 degree weather, however any bag will compress when you lie on it, short circuiting its insulation value. Your best bet in a situation where the ground is going to be uncomfortably cool (and it doesn't take much in my experience) is an inflatable sleeping mattress w 'stabilized loft and compressible foam core' as thermarest describes it 'mondo' version - they comes in super thick, comfortable iterations. This is in contrast to an 'air mattress' which is basically just a rubberized membrane that holds air and nothing but air.
I'll defer to your expertise, but I think if it's cold enough that my polar bag isn't working, even on an air mattress, I'm probably in a hotel.
Forget the sleeping bag; sounds like you need a better headlamp. They're having a nice discussion about the new generation of headlamps over on a/p's Discussion column. J-J just made a decision and bought one that was recommended. So taking a look and enjoying the Black Friday to Cyber Monday discounts may be an option. Here's a couple that look good to me:
There's nothing wrong with my Petzel Activa that another ten degrees of ambient temp wouldn't have fixed. Night-O lamps are NOT welcome on Out-and-back trail races.
if its dark enough to need a headlamp, i'm in the hotel.