Mammoth Double Sleeping Bag Liner in Cotton

Your sleeping bag has never been this comfortable and clean. The soft, oversized Mammoth Cotton Sleeping Bag Liner, made from cozy and breathable cotton fabric, slips right inside your sleeping bag and secures with Velcro fasteners, instantly adding about 10° of warmth and keeping your bag dry and clean. At 91 x 56 inches, the Mammoth Cotton Sleeping Bag Liner is made to comfortably fit Teton’s Mammoth two-person sleeping bags. This liner is machine washable and dryable for easy maintenance, no matter what your outdoor adventures leave you looking like by the time you hit the hay. Shop the Mammoth Cotton Sleeping Bag Liner now— it’s perfect for your next adventure.

Please note: We do not ship to P.O. boxes. Please provide a physical shipping address when checking out.

We ship from our warehouse in Salt Lake City, Utah via various methods, including USPS and FedEx. If an item is available for sale, it is in stock in our warehouse and will ship as soon as the payment processes, usually within 1 business day of your order.

Once shipped, orders typically take approximately 3 to 5 business days to arrive.

Standard shipping is free for orders $75 and above—after discounts are applied and before taxes and shipping are calculated—to destinations in the continental 48 US states.

When you place an order, you will get a confirmation email. Once your order has left our warehouse, we will email your tracking information to you. Your carrier can give you an estimated arrival date. Most carriers provide step-by-step updates if you request them.

Express shipping is available via FedEx. Rates are calculated by package weight and destination. These options and their rates will be available during checkout.