In reply to Post #212
Interesting about open top bags.....I'm a fan of square bags and I never zip up, hate it but have moved to a mummy type bag, the Wychwood Morpheus 7. Its so hot I cant zip it up. The difference between an open top and a closed 'mummy' style is notable.
I wish wychwood would do a wideboy size, would be the perfect bag then. I believe, the Morph is no longer available, hasn't been in stock all year.
Interesting about open top bags.....I'm a fan of square bags and I never zip up, hate it but have moved to a mummy type bag, the Wychwood Morpheus 7. Its so hot I cant zip it up. The difference between an open top and a closed 'mummy' style is notable.
I wish wychwood would do a wideboy size, would be the perfect bag then. I believe, the Morph is no longer available, hasn't been in stock all year.
In reply to Post #214
I just had contact with Wychwood. The Morpheus Ultra 7 is staying in the range!
I just had contact with Wychwood. The Morpheus Ultra 7 is staying in the range!
In reply to Post #214
I have the techlite and have found it to be excellent I use it with the zips open and add a bedchair cover in the winter if necessary as I dont like to be concealed and ts been more than addequate, the issue for anglers is that while getting in the bag in shorts and t shirt is great if you have to get up for a run doing so presents its own problems at this time of year.
I tend to go for a simple set of thermals and have my snugpak SJ6 and sallopettes on hand for this time of year and it works fine, as others have mentioned some feel the cold more than others but Ive had no issues with mine.
I also totally agree that 1 layer below you is better than 2 on top and a self inflating mattress is a god send for warmth and comfort
I have the techlite and have found it to be excellent I use it with the zips open and add a bedchair cover in the winter if necessary as I dont like to be concealed and ts been more than addequate, the issue for anglers is that while getting in the bag in shorts and t shirt is great if you have to get up for a run doing so presents its own problems at this time of year.
I tend to go for a simple set of thermals and have my snugpak SJ6 and sallopettes on hand for this time of year and it works fine, as others have mentioned some feel the cold more than others but Ive had no issues with mine.
I also totally agree that 1 layer below you is better than 2 on top and a self inflating mattress is a god send for warmth and comfort
Load of cobblers that clothes inside a bag 'stop it working'. The point of a bag, as highlighted is to trap your body heat - however wearing clothes will also trap heat by creating extra layers of air (which is a poor transductor of heat and hence insulating).
Any heat that escapes your clothing layers would still be retained by your bag.
By this flawed theory wearing a tshirt or fleece under your jacket would make you colder rather than warmer? As would using a thermal bed chair cover over a sleeping bag?
As long as the clothing is dry and doesn't make you sweat (or is so bulky that it compresses the insulation of the bag - unlikely) then it will make you warmer.
For additional layers to make you colder would defy the laws of physics.
Any heat that escapes your clothing layers would still be retained by your bag.
By this flawed theory wearing a tshirt or fleece under your jacket would make you colder rather than warmer? As would using a thermal bed chair cover over a sleeping bag?
As long as the clothing is dry and doesn't make you sweat (or is so bulky that it compresses the insulation of the bag - unlikely) then it will make you warmer.
For additional layers to make you colder would defy the laws of physics.
In reply to Post #217
That has always been my understanding as well.
No disrespect Yonny, honestly none meant, but you are using the snugpak combined with an undersheet as well as a bag cover. No wonder you are warm! I love the Snugpak but on its own it is not a 5 season bag.
That has always been my understanding as well.
No disrespect Yonny, honestly none meant, but you are using the snugpak combined with an undersheet as well as a bag cover. No wonder you are warm! I love the Snugpak but on its own it is not a 5 season bag.
In reply to Post #218
post 218 & 210 is spot on
..... It makes me smile when the "wearing less clothes is warmer" line is posted .
Of course, people feel the cold differently so people will adjust what they need to wear accordingly .... however to suggest less layers is warmer than more layers is just not true. The probability is that some are feeling the cold via sweating, normally as a result of poor choice of clothing (not breathable) or over compensating with too many clothes.
When i prepare for a really cold night, i have a hot meal, hot drink and get warm before turning in (star jumps etc), i then wear a base layer and a mid layer (heavier fleece)
post 218 & 210 is spot on
..... It makes me smile when the "wearing less clothes is warmer" line is posted .Of course, people feel the cold differently so people will adjust what they need to wear accordingly .... however to suggest less layers is warmer than more layers is just not true. The probability is that some are feeling the cold via sweating, normally as a result of poor choice of clothing (not breathable) or over compensating with too many clothes.
When i prepare for a really cold night, i have a hot meal, hot drink and get warm before turning in (star jumps etc), i then wear a base layer and a mid layer (heavier fleece)
In reply to Post #219
I have been fishing up Norf on the river trent my new fishing buddy (a local up there ) gets into his bag with everything on ??
and when he gets out to a fish I watch him literally shaking with the cold and he just cant wait to get back in nand in the morning he is forever saying oh its so cold ?
me on the other hand take off my coat and jumper and socks ( got a problem with my feet getting too hot) and when I get to a fish Im very warm and can grab a jumper or coat to put on if I feel cold
and in the not so cold weather I take off even more clothes
IT SURE AS HELL WORKS FOR ME
I have been fishing up Norf on the river trent my new fishing buddy (a local up there ) gets into his bag with everything on ??
and when he gets out to a fish I watch him literally shaking with the cold and he just cant wait to get back in nand in the morning he is forever saying oh its so cold ?
me on the other hand take off my coat and jumper and socks ( got a problem with my feet getting too hot) and when I get to a fish Im very warm and can grab a jumper or coat to put on if I feel cold
and in the not so cold weather I take off even more clothes
IT SURE AS HELL WORKS FOR ME
In reply to Post #220
But does he have a different bag? Or wear clothes than aren't breathable/that make him sweat? Or does he have a lower basal metaboloc rate?
Can't draw any conclusion from your mate shovering when you were warm.
It's physics....
Look at footage from everest expiditions, where it is actually cold. They are using bags that cost around £1000. Don't see them stripping down to their boxers to get in them - they wear down all in one suits and base layers in order to stay as warm as possible.
But does he have a different bag? Or wear clothes than aren't breathable/that make him sweat? Or does he have a lower basal metaboloc rate?
Can't draw any conclusion from your mate shovering when you were warm.
It's physics....
Look at footage from everest expiditions, where it is actually cold. They are using bags that cost around £1000. Don't see them stripping down to their boxers to get in them - they wear down all in one suits and base layers in order to stay as warm as possible.
In reply to Post #220
Contrary to your problem, ive never been able to keep my feet warm all night when in sleeping bag (and ive tried everything from bare feet to sleeping in my boots and every season rated sock in between). Hot water bottle helps to begin with though
Contrary to your problem, ive never been able to keep my feet warm all night when in sleeping bag (and ive tried everything from bare feet to sleeping in my boots and every season rated sock in between). Hot water bottle helps to begin with though
In reply to Post #221
You'd wear a down suit in the sleeping bag on everest for the weight saving. Means you don't have to carry such a warm bag which would be considerably larger & heavier.
The point about wearing less in the sleeping bag is that you've purchased a good bag but you're preventing it from doing it's job by wearing loads of clothes. You may as well use a cooler rated bag along with the clothes. More layers also means less breathability so sweat & body vapour can't escape thus cooling you down quickly when you get out.
It's all personal though, I'm not really sure why people get their knickers in a twist over what people wear.
You'd wear a down suit in the sleeping bag on everest for the weight saving. Means you don't have to carry such a warm bag which would be considerably larger & heavier.
The point about wearing less in the sleeping bag is that you've purchased a good bag but you're preventing it from doing it's job by wearing loads of clothes. You may as well use a cooler rated bag along with the clothes. More layers also means less breathability so sweat & body vapour can't escape thus cooling you down quickly when you get out.
It's all personal though, I'm not really sure why people get their knickers in a twist over what people wear.
In reply to Post #222
A good tip for warm feet is to plunge them in cold water before getting in your bag. Dry them after obviously but this has the effect of really warming them up (serious)
A good tip for warm feet is to plunge them in cold water before getting in your bag. Dry them after obviously but this has the effect of really warming them up (serious)
In reply to Post #223
The under suit is what I do, it's diving one made by snugpak. Wear it under my normal clothes.
Not much change from£200 but it will last forever and you can use a 4 season bag, get up a night and still be warm.
Getting in a bag in tee shirt and pants in this country is the stupidest thing I have heard of.
The under suit is what I do, it's diving one made by snugpak. Wear it under my normal clothes.
Not much change from£200 but it will last forever and you can use a 4 season bag, get up a night and still be warm.
Getting in a bag in tee shirt and pants in this country is the stupidest thing I have heard of.
In reply to Post #218
For sure Mark, I agree, with no additions it's not a proper 5 season bag. But with a cover/mat it's still lighter than the next lightest equivalent. IMO it's the weight, or lack thereof, that you're paying for with this product.
For sure Mark, I agree, with no additions it's not a proper 5 season bag. But with a cover/mat it's still lighter than the next lightest equivalent. IMO it's the weight, or lack thereof, that you're paying for with this product.
In reply to Post #223
Wearing a breathable baselayer and a mid layer on my top half and thin fleece lined trousers (or just normal trousers) - I never had a problem getting the bag warm enough after getting in.
It was in the early hours I was waking up too cold and had to layer up - and no I was not sweating.
As I said, with the addition of a 2kg Trakker delux bedhcair cover I am now warm enough in all conditions.
I thought the sherpas do most/all the carrying so the weight of the bag doesn't matter!
Wearing a breathable baselayer and a mid layer on my top half and thin fleece lined trousers (or just normal trousers) - I never had a problem getting the bag warm enough after getting in.
It was in the early hours I was waking up too cold and had to layer up - and no I was not sweating.
As I said, with the addition of a 2kg Trakker delux bedhcair cover I am now warm enough in all conditions.
I thought the sherpas do most/all the carrying so the weight of the bag doesn't matter!
In reply to Post #217
Jamesvg, with all due respect, you are entitled to your opinions, but you are completely wrong.
The Law of Physics says that moisture sheds heat faster than a dry surface.
The "layering" system that you elude to is perfect when active. Your body produces heat, that heat moves moisture through layers and away from your body. Your movement helps with this, allowing slight airflow around armpits, cuffs, hems and so on, helping move that moisture away, helping to control your body heat. Moisture against the skin reduces the bodies ability to stay warm.
However, when you sleep, your body cools and the moisture cannot move as well. The moisture remains trapped against your skin, and it will start to cool you further.
In a sleeping bag, what happens is that as the moisture forms (partly through condensation as the outer layer of the clothes is colder than the inner layer, thus producing more moisture) and cools you further. There is a balance though.
A single layer of Merino wool or similar inside a bag, such as long johns and a long sleeved top, prevents a build up of moisture on or next to the skin. Instead, the body heat is now able to fill the bag, and make it warm. Add a hat and socks and you will be sorted.
Everything I write is based on my experience or that of instructors. (Military and Mountain rescue). that has been based down whilst either on exercise or on courses. As a current member of the local Mountain Rescue team, we train pretty much through the winter and currently we are experiencing -13(ish) at night. With wind chill, its pushing -20. Trust me on this one, I do know a bit about survival in cold climates.
Jamesvg, with all due respect, you are entitled to your opinions, but you are completely wrong.
The Law of Physics says that moisture sheds heat faster than a dry surface.
The "layering" system that you elude to is perfect when active. Your body produces heat, that heat moves moisture through layers and away from your body. Your movement helps with this, allowing slight airflow around armpits, cuffs, hems and so on, helping move that moisture away, helping to control your body heat. Moisture against the skin reduces the bodies ability to stay warm.
However, when you sleep, your body cools and the moisture cannot move as well. The moisture remains trapped against your skin, and it will start to cool you further.
In a sleeping bag, what happens is that as the moisture forms (partly through condensation as the outer layer of the clothes is colder than the inner layer, thus producing more moisture) and cools you further. There is a balance though.
A single layer of Merino wool or similar inside a bag, such as long johns and a long sleeved top, prevents a build up of moisture on or next to the skin. Instead, the body heat is now able to fill the bag, and make it warm. Add a hat and socks and you will be sorted.
Everything I write is based on my experience or that of instructors. (Military and Mountain rescue). that has been based down whilst either on exercise or on courses. As a current member of the local Mountain Rescue team, we train pretty much through the winter and currently we are experiencing -13(ish) at night. With wind chill, its pushing -20. Trust me on this one, I do know a bit about survival in cold climates.