recommend a bag

old-skool-lite

old-skool-lite

Thru Hiker
Something like that. It's only listed on their site occasionally so I can't check. Remember me saying I often forget specs 😃

Simple bags. No neck baffle. Not sure I'd buy new now at current prices.
 
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WilliamC

WilliamC

Thru Hiker
Jww said:
I have been exploring layering a bag with synthetic quilt on top

But that weighs more than the SD -9(-18) bag, and id imagine more bulky also, could look at a down quilt.
Click to expand...
The advantage of a synthetic overquilt is that in cold weather, when the dew point is inside your sleep system (sorry @old-skool-lite), the synthetic quilt will hold up better to the moisture.
Probably not a significant benefit if you're only doing overnighters, though.
 
Jww

Jww

F.K.A cuprajake
BogTrotter said:
4°C Comfort? You’ll definitely need to be wearing all your cold weather gear! (I would).
Click to expand...
Got it mixed up with this
www.trekitt.co.uk

Mountain Equipment Fireflash Sleeping Bag Ombre Blue

<span>The Fireflash Sleeping Bag is excellent for fast and light mountaineering adventures and multi-day Alpine trips. Part of the M.E Extreme Light series, it's super lightweight and packable without skimping on quality and warmth. </span>
www.trekitt.co.uk
 
Jww

Jww

F.K.A cuprajake
@WilliamC that's why I've been looking, even if it's only a real light weight one to move that dew point.

V+p do a big agness one 450g ISH

valleyandpeak.co.uk

Big Agnes Kings Canyon UL Quilt

The Big Agnes Kings Canyon UL quilt is specifically designed for the unpredictable British weather. Weighing just 425g and insulated with synthetic Primaloft, it is compact yet effective. The quilt features top corner hand pockets, allowing you to easily tuck it around yourself for added warmth...
valleyandpeak.co.uk valleyandpeak.co.uk

But ATM I'm sticking with the SD 0 bag, so may just take my katabatic bivvy , dunno

I've been doing some interesting reading on vapor barriers, but that's probably going to wet me not the bag lol

And as you say for my use point not a massive issue
 
Gobila

Gobila

Ultralighter
WilliamC said:
The advantage of a synthetic overquilt is that in cold weather, when the dew point is inside your sleep system (sorry @old-skool-lite), the synthetic quilt will hold up better to the moisture.
Probably not a significant benefit if you're only doing overnighters, though.
Click to expand...
This is the real advantage of layering in my experience. At -8 in the Cairngorms, I woke to find my down quilt as well lofted as if it had just come out of the tumble dryer and all condensation on the surface of the apex quilt above.
 
Jww

Jww

F.K.A cuprajake
Gobila said:
This is the real advantage of layering in my experience. At -8 in the Cairngorms, I woke to find my down quilt as well lofted as if it had just come out of the tumble dryer and all condensation on the surface of the apex quilt above.
Click to expand...
How packable are they? Being synthetic? I'm wondering if that and my middle bag with a comfort of -2 limit -9 would be enough ?

The SD 0 is a bulky beast
 
Gobila

Gobila

Ultralighter
Jww said:
How packable are they? Being synthetic? I'm wondering if that and my middle bag with a comfort of -2 limit -9 would be enough ?

The SD 0 is a bulky beast
Click to expand...
How bulky depends what material is used. This article discusses the relative advantages / disadvantages of alpha vs apex. And this one has some info on combining temperature ratings.
 
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Reactions: Jww
Jww

Jww

F.K.A cuprajake
Umm, not sure most the quilt options cost more than the SD 0 bag 😬😂 so for me personally, a bag cover or my bivvy probably better, if I was multi day, may be a need.

But for the colder months and my usage prob 3 months of cold ..not sure
 
Gobila

Gobila

Ultralighter
Darren said:
Could this be modified in some way into a 'sheet', or used as is?

outdoorgear.co.uk

OMM Core Sleeping Bag Liner

OutdoorGear stocks a wide range of outdoor clothing and equipment. All at great prices, low delivery costs and friendly customer service.
outdoorgear.co.uk outdoorgear.co.uk
Click to expand...

I don't see why not in principle however I think you'd want to add a face fabric to get the full advantage and, once you've added the cost of that material, it might work out cheaper to order both from overseas.
 
el manana

el manana

Thru Hiker
Darren said:
Could this be modified in some way into a 'sheet', or used as is?

outdoorgear.co.uk

OMM Core Sleeping Bag Liner

OutdoorGear stocks a wide range of outdoor clothing and equipment. All at great prices, low delivery costs and friendly customer service.
outdoorgear.co.uk outdoorgear.co.uk
Click to expand...

Might work as you suggest modding it into an oversheet but i would not recommend as a liner.

I tried one of them and sent it back. It was horrible, too short, really clingy and felt like it would rip when I tried to stretch into it. I felt like i was trying to get out of a spiders web. Quite disappointed.

(Its PL Active not Polartec Alpha)
 
Robert P

Robert P

Thru Hiker
I too would be concerned with Primaloft Active as a liner. It may add warmth, but based on my experience with the Core (+) hoody I'd be concerned about durability (ripping) and it is a very clingy material so I suspect would be awkward in use. Getting the arms of the hoody on if I have wet hands is a challenge as the fabric seems to stick.
 
el manana

el manana

Thru Hiker
@Robert P - agree, from my experience i don't think the Primaloft Core 75 is as durable as Alpha. It seems to tear/rip quite easily, i have a few repairs on my Core 75 leggings. Core 125 seems a lot better though (OMM Core jacket)
 
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WilliamC

WilliamC

Thru Hiker
Jww said:
How packable are they? Being synthetic? I'm wondering if that and my middle bag with a comfort of -2 limit -9 would be enough ?
Click to expand...
Enlightened Equipment has this table to calculate the combined warmth of 2 quilts or bags.
As for bulk, an Apex quilt does pack noticeably less well than a down one of equivalent rating.
 
Mole

Mole

Thru Hiker
From the EE chart, they claim if you added a 50F (10°C) (2oz/yd² or 67g/m²) apex quilt to a 30F (-1C) quilt you will get a rating of 10F(-12C).

One of their regular wide 50f Apex quilts weighs 350 g.

I could live with that for occasional winter use. Especially if it had a poncho hole. Or as an overbag/tube (with drawstring foot would be easy to make).

Whether it's worth the extra cost/work storage for such little usage is another question though.
 
Mole

Mole

Thru Hiker
In the past I have actually experimented with using a tricot liner (like a StS Reactor) Which was large enough to go over my down quilt. I found it offered great protection from condensation even as standalone, and I imagine with a bivvy like Katabatic or Borah , it's basically working very similar to the Alpha overbag, though less warmth for the weight.
 
Jww

Jww

F.K.A cuprajake
i think @BogTrotter ? has been trying these

Cocoon Mountain Wanderer OutdoorGB

The Mountain Wanderer is a super-lightweight, compact summer sleeping bag made of lightweight 40 Denier Ripstop Nylon and recycled Ecopet Performance insulation. It is ideal for staying overnight in alpine huts and it can also be used as a liner
www.outdoorgb.com www.outdoorgb.com

@Mole in this latest vid of justin hes trying out new layering


the Katabatic i have is
  • Pertex Quantum Air Upper- This highly breathable, water resistant fabric features a long lasting DWR coating that outperforms and outlasts other DWR treatments. Increased air permeability reduces condensation while remaining highly wind resistant.
 
B

BogTrotter

Thru Hiker
I trialed various combinations last year and found a solution with an Enlightened Equipment Revelation Apex 417g, +10C.

I was disappointed using multiple bags so just use a bag rated for the conditions and throw the EE quilt over. I have the wide version but I do question the necessity of such a large ‘throw over’ when something smaller would be adequate. That 417g could be reduced.

The Cocoon options are more insulated, heavier, and have a waterproof cover, which at 700g you’d expect a decent contribution to warmth but which I never found.

For me, it moves the dew point away from my sleeping bag and condensation forms on the surface of the quilt instead. The quilt drys really quickly.

This photo show the amount of condensation that has been shifted:

IMG_3860.jpeg


I started a thread here about this:

Cocoon Overbag and Inner.

After years of using a sleeping bag and mat I’ve now become classified as user of a ‘sleep system’ (cringe). I bought a Cocoon Overbag recently to help with or rectify the wet sleeping bag surface due to either dewpoint and/or freezing condensation. The Cocoon overbag boasts to add up to...
www.trek-lite.com
 
echo8876

echo8876

Thru Hiker
i've just got a bit tempted, but then checked the bill, and right now i can't pull such sum out of the savings.
image.png
 
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