Is this the right sleeping bag?

For the coast all of them are good but for the mountains... well... things are different. From experience, I can recommend you something serious since the conditions in the mountains can change from hour to hour. I would recommend you something like: a href="http://www.basspro.com/Ascend-25-Goose-Down-Mummy-Sleeping-Bags/product/10210477/-1762351" rel="nofollow"http://www.basspro.com/Ascend-25-Goose-D…/a . Anyways, it depends a lot on the season, the elevation etc. If you go in the summer just for one day when you see that outside it is very hot and the elevation is below 1500 m, then go for any of them...