Hope this is the best place to post this. My quality sleeping bag (Mountain Equipment) eventually needs a wash after a number of years I'm ashamed to admit to - slept in it last night as a test pre a trip and it disturbed an otherwise perfect sleep. So anyone got any hot tips on how to do this as easily and effectively as possible? It won't really fit properly in my domestic washer/drier. I have a launderette nearby. Or can I just hand wash it in a clean bath since it's only really the inside surface that I would think would need cleaning? Is washing meant to somehow clean the inside/stuffing? The washing instructions say that it can be dried it in a tumble drier on the low setting but I'm not sure if this is a must (to fluff the insides back up?) or whether I can just air dry it outside on a decent day. Also, the washing instructiosn say to use "non-detergent soap" - just what exactly is this? Please don't say I could google it - I'm relying on the helpfulness and knowledge of you good folks. Looking forward to your replies/help.