Lately, I've gotten back in the habit of hiking 3 or 4 miles with a fully-loaded pack 3 or 4 times a week. However, it's a pain to unpack it every time I get home, take the sleeping bag out, then repack it the next day to do it again.

So, I got to thinking. When my WM Megalite came from the shop, it was compressed (more than I usually do in my pack), and probably had been for a couple of months. That got me wondering why I couldn't just leave the pack packed, bag and all, unpacking it every week or so. That would mean fewer compress/decompress cycles which, I think I read somewhere, is what causes a bag to lose loft over time.

What do you all think - will I do my bag any real harm by leaving it compressed for a week or two at a time?