Coleman Dunnock 20F Big and Tall Sleeping Bag
- Maximum Height Recommendation: 76 inches
- Temperature Rating: -20 °F
- Occupancy: 1 Person, 2 Person
- Shape: Rectangular
Last refreshed Sep 8, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A warm, roomy cold-weather bag for tall campers who value comfort and machine washability over pack weight, backed by owners who report real warmth down into the 30s.
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ASIN: B00363PSKKCategory: Sleeping Bags
Overview
Coleman's Dunnock is a 20 degree Fahrenheit big and tall sleeping bag with a cotton shell and flannel liner, sized for adults up to about 6 feet 4 inches, and it is machine washable.
Coleman built this around its Fiberlock construction, meant to stop the fill from shifting into cold spots, plus a Thermolock draft tube along the zipper and a 2-way ZipPlow zipper designed to resist snagging fabric. It unzips from the bottom for warmer nights, and two Dunnock bags can be zipped together for a shared double setup.
- 20 degree F rating
- Fits adults up to 6 ft 4 in per listing
- 2-way ZipPlow anti-snag zipper
- Machine washable cotton and flannel
Who it's for
Suits taller adults camping in cool to cold conditions who want a washable, cotton-flannel bag rather than a technical backpacking bag. Less suited to ultralight hikers, since it is a heavier bag meant to stay near the car or tent rather than in a pack.
Pros and cons
- Feet can run cold from a zipper gap at the foot end
- Heavier bag, not meant for long hikes
- Drafts reported on windy nights outside a tent
Performance notes
Owners who measured it found the actual bag closer to 37 by 79 inches rather than matching the stated 6-foot-4 fit claim, and several said it ran warm enough to sleep comfortably near freezing when paired with a ground pad.
Specifications
| Brand | Coleman |
|---|---|
| Dimensions & fit | |
| Maximum Height Recommendation | 76 inches |
| Size | Big & Tall |
| Item Weight | 4.98 pounds |
| Item Dimensions L x W | 81 × 39 inches |
| Capacity & performance | |
| Temperature Rating | -20 °F |
| Age Range Description | Adult |
| Construction & materials | |
| ShellMaterial | Cotton |
| Material | Blend |
| Fabric Type | Lining : 100 % Cotton , Cover : 100 % Cotton |
| Color | Multi |
| Included components | |
| Unit Count | 1 |
| Number of Packs | 1 |
| Included Components | Sleeping Bag |
| Warranty & support | |
| Warranty Description | 2 years |
| Other details | |
| Occupancy | 1 Person, 2 Person |
| Shape | Rectangular |
| Closure Type | Zipper |
| Sport Type | Camping & Hiking |
| Number of Items | 1 |
| Seasons | All Seasons |
| Additional Features | Lightweight |
| Item Type Name | Sleeping Bag |