Topic

Full Winter Sleep system upgrade, Need Critique

  • This topic is empty.
Viewing 4 posts - 1 through 4 (of 4 total)
Russell Lawson BPL Member
PostedNov 26, 2014 at 2:31 am

Hello, I've started swapping out my outdated gear for the diy personal setup that fits my wants while also in budget and weight. I've put together a whole shelter system so far that I hope will get me through on some snow. It has been an evolution of concept building as I tried and tested each piece, I started with the APEX Quilt and after testing in 20F with a silk/wool liner (forgot to photograph, fabric from dharmatrading.com) found out how hard it was to side sleep without drafts so I created a paperclip cinch system, with duct tape and elastic rope. My quilt uses velcro and clips to hold together so I can still use as a blanket at partner's house. The clips lock onto the pads, which are placed from my knee to heel and under torso, and are used as backpack frame too. This system saved me last trip when I got stuck on a hill that had a forest fire two years ago, on the only flat spot, wedged between saplings with a friend in my shelter, I ended up with a puddle under my shoulder on the window reflector when I woke up, but I was dry, curled away with my pad connected to me.
1
2
3
4
5

The evolution started when the temperature started dropping and I didn't want to get my old heavy bag out again.
Although I sleep better in my new bag than I do under 5 wool blankets on my bed, I have a feeling I will run into temps it cannot withstand or when snow is under me, so I created a bivy today to increase my systems effectiveness but could use a lot of advice from those who also utilize APEX quilts. I designed the bivy with the intention of having a hung up space for wind and mist protection, that also doubles as a wind protective shawl when I exit my cozy bag and sit up. While still being able to use it as a closed bag with face hole, when not hung up. Also an elevated toe protection shield for me is a must because my feet always end up outside the shelter when I'm with friends. But I am curious how it will do with humidity, I almost put in a section of mesh.

It is made of 1.4 Cuben and m90, one zipper and a janky sewing machine, I had to scrape layers of ooze off to get working. I designed this Bivy to hold a full ridgerest, but so far the window shield works and is smaller to pack.
6
7
8

Weights:
7.9oz Bivy
25oz APEX quilt (1.5oz added from upper clips)
6oz silk 70/30 wool custom liner, doubled toe box
5.5oz torso pad (1oz added for paperclips and cord)
1.4oz blue foam knee pad
8.6oz Reflective pad and reflective sit pad

12oz Hexamid MYOG silnylon tarp
2oz 6 tent stakes 4 chopsticks

Total: 68.4oz = #4.27 Sleep and Shelter

Are these components considered on the hefty side? My bag runs at 11# 4oz with my winter clothing gear overall, and NEXT! I make a backpack to cut down 1.5#, currently using a free 35lt koas mt hardwear that I got down to 2# 5oz.

Simple straight forward for me to understand, but will it cut it below 20F?
To add I recently found a 12oz down patagonia jacket at goodwill I have yet to wear because I love wool and it keeps me warm enough, but I carry it with me anyway (I am allergic to down, gives me headaches when i wake up with it in a blanket.) I need to test it further before relying on it to sleepin but seems good condition, it kept my lady from freezing. That with thicker wool socks, long underwear and more trail trials, it might work?

Overall I Spent a couple hundred dollars, a couple days sewing and feel better off, but what temps do you think this will take me to? and how can I improve upon the existing system?

THANK YOU FOR READING

David Gardner BPL Member
PostedNov 26, 2014 at 1:15 pm

For a secure winter system, 4.27# seems pretty good to me.

Just to make sure I've got you: you've tested this system down to 20F, and now you're adding the bivvy.

I would think the bivvy would shave another 5-10F off of the 20F, down to 10-15F. The full length thermarest would probably help too, maybe another 5F. Put a mylar space blanket under the pad if you want to keep the IR reflectivity of the window reflector. Most expensive, but probably most effective, have your quilt overstuffed with a couple of ounces.

Russell Lawson BPL Member
PostedNov 26, 2014 at 8:44 pm

Thanks for the Ideas! It's true I got on making a bivvy late, a couple weeks ago during the giant cold front I was thinking how much warmer I might be with one, but last week I did fine without anything extra. I wanted a to take in design concepts before I spend money on cuben ground cloth material. I borrowed my friend's solar ridgerest which he uses in the snow with a thinlite pad, I plan on getting one to make sure I can go out and hike anytime of the year sort of mentality, but hesitate when it comes to rolling a pad inside my backpack, and Im not sure if I will make a backpack designed for a ridgerest, or use this 2lb 9oz MT Hardwear until summer and go back to just torso and make a SUL pack. so many ideas, but as long as I keep hiking I know the needs will solve themselves. Looking for more thoughts on this!

Viewing 4 posts - 1 through 4 (of 4 total)
Loading...