Sleeping bag What weight of filling.

no use getting the lower end sleeping bags, as you would be feeling cold when you dont need to.

True, but *all* sleeping bags can be upgraded by at least a season by the simple expedient of wearing more clothing.

'tho if you have to wear base layer+ woolly bear+balaclava, then it's probably time to get a thicker bag....

(non-boat, but I once spent a night in a transit van at Snetterton in march - never again! - my tent would have been warmer if I'd been able to stop it taking off.)
 
where do you go if you are in a 5 seasons bag wearing several layers?
Hint, I was in a snow hole on New Years Eve in a snow hole in the Cairngorms with an RAF Mountain Rescue Team who I trusted, and they trusted me or they wouldn't have kept taking me out as a teenager.
 
Thanks for comments.

Bought a 500g/sqm bag in the end. Relatively mild last night* so in the event a touch on the warm side, but I still have the old one that I can use in the height of summer.

*11.5C minimum at Thorney Island
 
Sleeping bags are the devils work! Especially those mummy ones which allow no movement - in the single quarter berth this is a recipe for hell.

Duvet underneath and a duvet on top with clothing when necessary is my preference.

As for room, you can stuff a duvet into a bag and takes very little space when compressed. And it looks so much prettier :-)
 
I do have a lightweight mummy shaped bag which I use for expedition type things, but for the boat I prefer a more roomy rectangular bag.

For the last 20 years I've used a cheap but very comfortable Argos bag, but I've just bought a lighter weight 1 season £8 bag from Halfords. Much smaller, and it has a two way zip so in warm weather toes can be poked out. It also has a velcro tab across the top of the zip so that it doesn't open up during the night. I plan to use the new bag in warm weather, the Argos in colder weather, and both of them when it's really cold.
 
Top