You may not find it an issue but I find that if I sleep in a mummy sleeping bag I feel like my feet are tied together and as a result I feel very claustrophobic and uncomfortable.
The other thing that I would recommend is to go for the warmer end of the spectrum when it comes to thicknesses and ratings. If you are too hot you always lower the zip and stick a leg out of bed.
Can't help you with the children though I am afraid..........
------------- Love a lot. Trust a few. But ALWAYS paddle your own canoe!!
Minds are like parachutes:- They only function when they are open!!!
Those who talk don't know.
Those who know don't talk.
Buy the best you can afford. We have 3 season bags which were £35 each and we have always been snuggly warm! Our youngest son has the junior version. Personally I like the recatngular shaped bags - I find the mummy style too restrictive.
We also take a fleece blanket each just in case and wearing layers in bed also helps to keep you warm.
Some people suggest buying an adult bag for children and tying the end to prevent them from slipping down. Doing this will save you having to keep replacing the bags as they grow - you just move the string!!
Hi, same here. the mummy ones do keep u warm but they are quite narrow and restrictive.
The number rating means the higher it is, the thicker / warmer it wil be. You will need at least a 300 for our climate but if you can id go for a 500 and you can always unzip it if ur too warm.
Our kids aged 10 and 5 used mummy bags and loved them, my wife loved hers, i hated mine cause im a fidget in the night and i couldnt move about enough!
Argos do some 500 gsm mummy bags and also envelope bags which looking at the sizes u will note are slightly wider. (whether they are on sale at argos now im not sure, may have to wait for next catalogue)
It's a good idea to use a sleeping bag liner (available in silk, fleece or cotton) as it means that you don't have to wash the bag so often. However, a liner can add a season to your sleeping bag so, providing you're not a really cold blooded person, I'd advise a 300 sleeping bag with a liner. Best to buy a bag with a hood, shoulder baffle & zip baffle for camping. The envelope style (without hood) are more for caravaners. You don't have to use the hood if the weather is warm, but you may need it for early or late season camping.
The key thing to look at on any sleeping bag is the comfort temperature. This is based on standard laboratory tests with a dummy and provides the best comparison between sleeping bags.
Always look for the comfort temperature and never the extreme temperature, which is about survival and largely irrelevant to most of us. Be wary of manufacturers and retailers who boast extreme temperatures.
You should also get warmer bags if you feel the cold. According to the tests, women generally need a bag that goes 5*C cooler than men. I'm not sure about children and how they relate to the tests.
For spring/autumn, aim for 0-2*C comfort, into the minuses if you feel the cold. Be wary of manufacturers and retailers describing bags as 3-season, 4-season, etc. Always look at the comfort temperature.
Mummy bags aren't necessarily better than square bags. They are lighter and pack smaller but that's probably not a major concern if you are car camping. JK98 makes excellent points about the hood - big advantage if it gets cool - and also the liners. For summer use, many people use (in fact prefer) duvets.
Perhaps the most important thing to add is about what's underneath. Any sleeping bag is crushed by your weight and provides less benefit underneath you. What you sleep on can make a huge difference to warmth if the ground is cool. Self inflating mats provide good insulation because they trap warm air. Airbeds don't (the air is free to move) and are probably best reserved for summer.
Try to avoid the ones with a shiny outer cover. They are very slippy and slide down during the night, leaving you uncovered.
The ones we have were quite expensive, I dont remember the make, but have had them for quite a while, so maybe would be different now.
I just love my Coleman Hudson 450 its a rectangular bag with loads of room for shuffling about. i was snug as a bug at -5c, only draw back is it wont fit in the washing machine its so bulky, so i have to trail off to the laundrette with it still wont change though
------------- I Think Therefore I Am I Think? eh? If all is not lost where is it?
My wife and I have lovely down mummy bags (from the backpacking days - I would generally recommend against down fill for general family camping use because it can be tricky to look after). If you're used to the mummy style, and can put up with the restriction, a mummy bag (with liner) is great. Having said that, there are great rectangular bags out there and we are considering trying one next season.
As for the kids - we bought vango mummy kids bags which are great (and cheap, too!) - when the kids decide they want to sleep in them. I think they find them a bit restrictive and so will probably move them to rectangular bags soon.
Lastly: Make sure you have decent mats underneath you - when we first went backpacking, we forgot our mats and despite our £100+ lovely down sleeping bags we were flippin' freezing! We use thermarests now, although there are loads of opinions on what is best - which is an entirely personal decision. You should do a search on the forums to see what's available.