Blue and gray 10 degree sleeping bag with CORE branding.

Person and dog using a blue 10 degree sleeping bag with comfort level indicator and product details.

Blue and gray 10 degree sleeping bag with dimensions.

CORE 10 degree sleeping bag with features highlighted.

Blue 10 degree sleeping bag with gray interior and hood cinched.

Close-up of blue and gray 10 degree sleeping bag fabric texture.

Close-up of a 10 degree sleeping bag with a hood and zipper.

Blue and gray 10 degree sleeping bag carry bag with CORE Equipment branding.

10 Degree Mummy Sleeping Bag

10 Degree Mummy Sleeping Bag

$ 129.99

1-Year Warranty

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Overview

COMFORT LEVEL: This sleeping bag is just right for cozying up in temperatures between 10°F and 30°F.
PREMIUM MATERIALS: This sleeping bag is made with alternative down fill, making it not only exceptionally warm, but also super packable - perfect for your next outdoor adventure.
HEAT RETENTION: This sleeping bag's hooded feature prevents heat from escaping, so you can sleep soundly and stay nice and warm all night long.
FRUSTRATION FREE: No more snagged zippers! The triple-needle stitching on the lining near the zipper means you can zip and unzip this sleeping bag with ease and without any frustrating snags.
SLEEPING PAD INTEGRATION: Say goodbye to slipping and sliding around in your sleeping bag - this one comes with built-in sleep pad integration that keeps it securely in place throughout the night.
MACHINE WASHABLE: Made with durable and soft premium fabrics to keep you cozy on your adventures, and when you get home, no need to worry about any mess - it's machine washable and easy to care for!

Product Specs

Model Number: 40257
Bag Dimensions: 85 in (L) x 33 in (W) (215.9 cm x 83.8 cm)
Shell Material: 100% Nylon
Lining Material: 100% Nylon
Fill Material: 100% Polyester
Product Weight: 3 lbs (1.4 kg)
Pack Size: 16 in x 11 in x 4 in
Care Instructions: Machine wash on a gentle cycle in cold water. Only use non-chlorine bleach when needed. Hang to dry. Do not iron. Do not dry clean. Wash separately.

Shipping & Returns Policy

Enjoy free ground shipping on orders over $50 within the lower 48 states. Orders under $50 ship for $9.99. We also ship to Alaska, Hawaii, and Puerto Rico for an additional fee. Orders placed before 2:00 pm CST ship the same day. See our full Shipping Policy for more details.

If you’re not completely satisfied with your purchase, you can return unused items in their original condition within 30 days. Customers are responsible for return shipping costs, which will not exceed $20, but you may choose store credit to avoid return label fees. Replacement parts are final sale and not eligible for return or exchange. Learn more in our full Returns Policy.