Our dog is growing, so it's time to get back into multi day trips with the whole 'family'. The problem: my GF wasn't all that warm with her Cumulus Comforter M350 on our August TMB-trip, so I'm searching for a decent 3-season down sleeping bag that doesn't weigh a ton (preferably under a kilo) & that will keep my GF warm between -5°C & 0°C. We use a MSR Mutha Hubba for the three of us & she uses a Exped Synmat UL M as a sleeping pad. She's 168 cm long & is a pretty cold sleeper. Currently, I've been looking at the Cumulus Panyam 450 & the Panyam 600. Even though the latter is pretty much perfect in terms of specs I wonder if it's not too warm & will cause all sorts of condensation issues in the bag (I'm pretty... paranoid with down). I might be using the bag myself; occasionally, on a rare Belgian winter trip. If anyone has other suggestions (that don't break my bank all that much) or has something laying around gathering dust; I'd love your input.