[pct-l] Down sleeping bag

[Ashley Lowe]

So this may be a stupid question, but it's the first time I've owned a nice down sleeping bag. So after a a few years of very occasional use I have noticed that its losing more and more feathers (not a lot but my pants are sparkled white with them in the morning and some around the tent on our last overnighter). I checked for holes but couldn't find one though I did see that some were beginning to poke through the nylon. I'm totally use to being covered since by regular nightly blanket is down but I'm worried that I might be losing my degree rating as well. Its rated as 25+ F and I was planning on using it our hike and wearing cloths on cold days (I sleep fairly warm). 
So my main question is when your down sleeping bag starts losing feathers what do you do or conclude? Is it time to spend that money on that helium I've been eyeing?Ashley