 Topic Name: Bivy sack and sleeping bag combo?
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on: August 17, 2009, 08:03:08 AM
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grannygear
Posts: 21
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« on: August 17, 2009, 08:03:08 AM » |
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The bivys like this one http://www.rei.com/product/750944 when combined with a very lightweight sleeping bag...worthwhile? I am concerned about the condensation issues but I would like to extend the rating on the bag a bit. |
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Topic Name: Bivy sack and sleeping bag combo?
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Reply #1 on: August 17, 2009, 08:59:06 AM
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flatfishy
Location: south-west uk
Posts: 60
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« Reply #1 on: August 17, 2009, 08:59:06 AM » |
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you'll sweat like a peado on a school bus sleeping in one of those. no good. emergency only. from a uk site but still worth a read: http://bivibag.org.uk/ |
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Topic Name: Bivy sack and sleeping bag combo?
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Reply #2 on: August 17, 2009, 08:59:46 AM
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DaveH
Moderator
Posts: 975
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« Reply #2 on: August 17, 2009, 08:59:46 AM » |
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I've used the emergency bivy for a lot of bikepacking. For the price & weight it's a no-brainer to carry one of those for any ride with the potential to become epic. The material is quite durable, but does not breathe. There are openings at the foot, but condensation always builds up a bit for me. It's only been problematic when raining though.
A much better option exists for the same weight and a bit more cash: http://www.montbell.us/products/disp.php?p_id=2321027. I used one of these for CTR and it added loads of warmth. I was actually too warm on all but the last night out. It still developed a bit of condensation on a rainy night, I don't think there's any way to avoid that with a bivy.
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Topic Name: Bivy sack and sleeping bag combo?
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Reply #3 on: August 17, 2009, 10:24:04 AM
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grannygear
Posts: 21
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« Reply #3 on: August 17, 2009, 10:24:04 AM » |
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you'll sweat like a peado on a school bus sleeping in one of those. no good. emergency only. from a uk site but still worth a read: http://bivibag.org.uk/That sounds awful, whatever a peado is. Must be a UK thing? |
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Topic Name: Bivy sack and sleeping bag combo?
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Reply #4 on: August 17, 2009, 10:25:07 AM
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grannygear
Posts: 21
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« Reply #4 on: August 17, 2009, 10:25:07 AM » |
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I've used the emergency bivy for a lot of bikepacking. For the price & weight it's a no-brainer to carry one of those for any ride with the potential to become epic. The material is quite durable, but does not breathe. There are openings at the foot, but condensation always builds up a bit for me. It's only been problematic when raining though. A much better option exists for the same weight and a bit more cash: http://www.montbell.us/products/disp.php?p_id=2321027. I used one of these for CTR and it added loads of warmth. I was actually too warm on all but the last night out. It still developed a bit of condensation on a rainy night, I don't think there's any way to avoid that with a bivy. Nice. Well, I need to think about this a bit more. Thanks for the link. |
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Topic Name: Bivy sack and sleeping bag combo?
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Reply #5 on: August 17, 2009, 06:00:36 PM
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DaveC
Location: Kalispell, MT
Posts: 249
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« Reply #5 on: August 17, 2009, 06:00:36 PM » |
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Mike, that's what I had to survive the night out last month, and it gives tons of warmth for the weight and price. I've slept in it with a sleeping bag on numerous occasions, though I've always had my head and shoulders exposed. If there's much of a chance of rain, I bring a small tarp as well.
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Topic Name: Bivy sack and sleeping bag combo?
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Reply #6 on: August 17, 2009, 06:34:05 PM
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Pivvay
Riding and exploring
Location: Westminster, CO
Posts: 681
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« Reply #6 on: August 17, 2009, 06:34:05 PM » |
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The bivy DaveH mentions is what I use for most trips, it's far better than a heatsheets one. However the heatsheets one is awesome if you're not bringing a sleeping bag or if you expect only minimal rain. When I bring a heatsheets bivy and a bag I use it as a ground sheet first, vapor barrier (inside the sleeping bag) if it's freeking cold and dry or a real bivy if it rains. You will get quite wet using it as a real bivy but for a short rain it's probably still better than soaking your bag.
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-Chris Plesko
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Topic Name: Bivy sack and sleeping bag combo?
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Reply #7 on: August 17, 2009, 07:57:40 PM
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grannygear
Posts: 21
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« Reply #7 on: August 17, 2009, 07:57:40 PM » |
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What I am looking to do is create a modular sleeping system, one that I can add or take away 'layers' if you will for climate conditions. The bag I have is very, very light but quite light in the thermal rating dept. I was looking at this type of sack as not a complete shelter, but rather an addition to the system. Any other benefit like being an emergency solution is just a plus. I want to move towards a tarp system for shelter but for now I am happy with the pretty lightweight 1 man tent set up. I am more towards the comfort end then some of you hardier souls. Thanks for all the info.  |
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Topic Name: Bivy sack and sleeping bag combo?
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Reply #8 on: August 17, 2009, 08:15:02 PM
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Pivvay
Riding and exploring
Location: Westminster, CO
Posts: 681
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« Reply #8 on: August 17, 2009, 08:15:02 PM » |
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If you want comfort get a tarptent Sublite and/or contrail and be done with it for a shelter. Light, full bug and rain protection and way nicer to hang out in than a bivy.
If you need extra warmth in a summer sleeping bag, a puffy coat or vest is WAY better than adding a bivy sack usually. I carried a 5.5 ounce Patagonia synthetic vest on the Divide. Loved it! Totally worth the weight and I was not cold at night this year.
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-Chris Plesko
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Topic Name: Bivy sack and sleeping bag combo?
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Reply #9 on: August 17, 2009, 09:32:08 PM
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DaveC
Location: Kalispell, MT
Posts: 249
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« Reply #9 on: August 17, 2009, 09:32:08 PM » |
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I think you're on the right track. I've been using a Backpackinglight Cocoon 60 synthetic "quilt" (a hoodless, bottomless sleeping bag) all summer. It weighs 11 oz, and with a light, hooded down jacket is good (for me) down well into the 40s. Then I also have a nice coat to wear when cooking dinner.
For no bug areas, I'd add a light bivvy (I want a Montbell, or I might make my own if I can track down WPB fabric), and a small silnylon tarp. Add a light, small inflatable mat and you should have a solid, storm proof sleep system good for three seasons outside Alaska for three pounds or less.
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Topic Name: Bivy sack and sleeping bag combo?
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Reply #10 on: August 30, 2009, 08:22:13 PM
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alpka
Posts: 20
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« Reply #10 on: August 30, 2009, 08:22:13 PM » |
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http://kentsbike.blogspot.com/Scroll down in this guys blog and check his super light and well tested setup...
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Topic Name: Bivy sack and sleeping bag combo?
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Reply #11 on: August 31, 2009, 10:03:38 AM
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