Using your Sea to Summit Comfort Blend Sleep Bag Liner is a breeze. Simply unfold it and place it inside your rectangular sleeping bag or use it as a standalone sleep sheet if it has a pillow sleeve. It's great for camping, traveling, or just adding an extra layer of comfort at home. When it comes to care, machine - wash it on a gentle cycle with mild detergent. Avoid using bleach or fabric softeners as they can damage the fabric and the HeiQ odour control technology. After washing, tumble dry on low heat or hang it to dry. Make sure to store it in the provided storage case to keep it clean and ready for your next adventure. And remember, you have a lifetime guarantee, so you can enjoy worry - free use of this great product.