Munro Map

Hi all,

i've been looking at down sleeping bags, and wondered if anyone had any comments. I'm thinking about the alpkit pipedream 800, or a rab ascent 900. They both cost a similar price (arond 170), the rab is heavier, and i don't quite know how to compare the temp ratings.

Does anyone have any experience with these bags? or others bags in a similar price range? My aim is for bivis/camping in the snow - scotland winter, and alps

Cheers