Coleman Dunnock 20F Big and Tall Sleeping Bag
- 20 degrees F cold-weather use
- 6 ft 4 in tallest user, big and tall cut
- 81 x 39 inch rectangular bag
- 2.26 kg listed weight
- Cotton cover with flannel liner
- 2 year manufacturer warranty
Last refreshed Sep 8, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A roomy rectangular cold-weather bag for tall campers, with a flannel liner and a machine-washable build. It is a heavier cotton bag, so weigh it against longer backpacking trips.
As an Amazon Associate I earn from qualifying purchases. ProductDome earns a commission when you buy through links on this page.
ASIN: B00363PSKKCategory: Sleeping Bags
Overview
Coleman built this rectangular bag with a cotton cover and flannel liner for chilly nights. A draft tube runs along the zipper, and the foot end unzips for ventilation on warmer nights.
Reason to look at it: generous room for taller adults, a two-way zipper that resists snags and a roll-up packing system. The limitation is that the rating is described as down to a low figure rather than a comfort rating, and fill details are thin.
Who it's for
Car camping and glamping in cold weather, for tall or broad adults, is the situation here. Anyone hauling the bag on foot over several days, or sleeping in deep winter cold, should look at lighter and warmer options.
Pros and cons
- Big and tall cut
- Draft tube along the zipper
- Foot end unzips for ventilation
- Heavier cotton construction
- Fill material not described
- Rating is a low-end figure
Performance notes
Fiberlock construction is meant to reduce cold spots, and the tube along the zipper limits heat loss there. Cotton plus flannel adds warmth but also weight, and cotton dries slowly. Foot-end venting lets the bag work on milder nights as well.
Specifications
| Brand | Coleman |
|---|---|
| Dimensions & fit | |
| Maximum Height Recommendation | 6.33 feetlower than 53% of 41 sleeping bags |
| Size | Big & Tall |
| Item weight | 2.26 kg |
| Item Dimensions L x W | 81 x 39 inches |
| Capacity & performance | |
| Temperature Rating | 20 degrees F |
| Construction & materials | |
| ShellMaterial | Cotton |
| Fabric Type | Lining: 100% cotton, cover: 100% cotton |
| Warranty & support | |
| Warranty Description | 2 year manufacturer |
| Other details | |
| Occupancy | 1 person, 2 person |
| Shape | Rectangular |
| Closure Type | Zipper |
| Seasons | All seasons |
Closest rivals on specs
Amazon Basics 30F Cool Weather Sleeping Bag- Item Weight 4.98 vs 4.41 pounds (+13%)
Guru Camping Sleeping Bag- Item Weight 4.98 vs 3.09 pounds (+61%)
Frequently asked questions
Can the Coleman Dunnock sleeping bag go in the washing machine?
Yes. The title and description say it is machine washable, with no water temperature or drying guidance given.
How tall a person fits the Coleman Dunnock?
The description says it accommodates most people up to 6 ft 4 in, and the maximum height field reads 6.33 feet.
Is the Coleman Dunnock a lightweight backpacking bag?
The additional features field says Lightweight, but the item weight reads 2.26 kg and the cover is cotton, so a long hike may call for a lighter bag.