General Care
A synthetic bag should provide years of service but as with any sleeping bag it will last longer and perform better if cared for correctly. During use, especially on extended trips, air your sleeping bag whenever practical and dry thoroughly before storing.
When not in use, store your sleeping bag in a cool dry place away from direct sunlight; store uncompressed, loose in a large box or pillow case. If possible avoid storing inside its stuff-sack for long periods of time. Small stains and spillages can usually be cleaned with a damp soapy cloth but avoid washing your bag unless it really needs it. Zips should be kept clean and regularly lubed.
When not in use, store your sleeping bag in a cool dry place away from direct sunlight; store uncompressed, loose in a large box or pillow case. If possible avoid storing inside its stuff-sack for long periods of time. Small stains and spillages can usually be cleaned with a damp soapy cloth but avoid washing your bag unless it really needs it. Zips should be kept clean and regularly lubed.