sleeping bag or silk bag

[shell]

Hi, my partner and I are walking from Leon to Santiago the last two weeks of June. Do we need to take a seeping bag or will a silk bag be OK?
Shell

 

[spursfan]

as long as you're early enough at the refuges to get a blanket, I'd suggest a silk sleeping bag liner would be the better choice - though I am at the light as possible end of the spectrum, myself