The difference between a chilly night and a warm, restful one often comes down to the layers you choose. While a dedicated four-season bag is great, it’s not always practical to carry. That’s where the Coleman Stratus Fleece Sleeping Bag Liner steps in. This versatile piece of Sleeping Gear promises to be the low-profile thermal upgrade your current setup needs, whether you’re camping in a rooftop tent or cozying up in a swag.
The good
- Adds 12°C to current sleeping bag
- Lightweight at 775g total
- Full length ZipPlow zipper
- Comfort rating of 10°C alone
- Fully machine washable fabric
The not-so-good
- Packed size is 28 x 17 x 17 cm
- Heavier than silk liners (775g)
- Only comes in rectangular shape
Designed to either be used alone or to boost the warmth of your primary sleeping bag, we put this fluffy fleece to the test to see if it truly delivers the comfort and added warmth needed on the trail.
What You’re Getting
A versatile, machine washable fleece liner that can be used alone for a 10°C comfort rating or inside a sleeping bag to add 12°C of warmth. It features a no-snag ZipPlow zipper and packs down compactly.
Quick Specs
If you’re ready to dive into the details, here are the key specs for this product. The table below gives you a clear and quick overview of everything you need to know.
| Spec | Details |
|---|---|
| Brand | Coleman |
| Model Name | Stratus Fleece Sleeping Bag Liner |
| Material | Fleece (Polyester) |
| External Dimensions | 190L x 80W cm |
| Packed Dimensions | 28 x 17 x 17 cm |
| Weight | 775g (including stuff sack) |
| Comfort Rating (Alone) | 10°C |
| Added Warmth (Liner) | Adds 12°C |
| Features | ZipPlow zipper, Elastic storage strap, Machine washable |
First impressions
The Coleman Stratus fleece sleeping bag liner has a handy elastic strap attached to the bottom end for quick rolling and you notice two things immediately. First, the fleece fabric is incredibly soft and comfortable. It feels instantly cozy, you just know it’s going to make any night better. Second, while it is soft, it feels durable and substantial.
At 775 grams (including the carry pouch), it’s not in the same league as a featherlight silk liner, but for the warmth it provides, the weight is totally manageable. The rectangular shape is generous at 80 cm wide, giving you plenty of room to move around inside. The zipper system feels smooth and the simple elastic strap sewn into the foot of the liner makes rolling it up and stuffing it back into the sack quick and hassle-free.
Materials & Build Quality
The entire Coleman Stratus Fleece Sleeping Bag Liner is constructed from a soft, yet robust fleece material. This fabric is key to its performance, as fleece is fantastic at trapping air and providing instant warmth the moment you climb in. One of the best features, however, is its simplicity and maintenance. Since it’s fully machine washable, you can easily keep your sleeping system fresh. This is great for maintaining Camp Hygiene and extending the life of your primary Sleeping Bag, as the liner takes the brunt of body oils and dirt.
The construction quality is solid, especially around the zipper. Coleman has included their patented two-way no-snag ZipPlow zipper, which works exactly as promised. It plows the fabric away from the zipper teeth, meaning those frustrating mid-sleep snags just don’t happen. This small detail greatly improves the overall durability and ease of use.
Ergonomics & Weight
The design of the Coleman Stratus fleece sleeping bag liner is focused on maximizing comfort and versatility in various camping scenarios. The external dimensions of 190 cm long and 80 cm wide mean it fits most average-sized adults comfortably and provides ample width to avoid that restrictive, mummy-bag feel. That generous size allows for natural movement and easily accommodates you if you toss and turn a bit.
Weighing in at 775g, this liner is definitely for general camping, touring, or boosting the warmth of a three-season bag, rather than ultralight backpacking where every gram is critical. However, its packed dimensions of 28 x 17 x 17 cm are compact enough to stash in a 4WD Storage compartment or a hiking pack without taking up an excessive amount of space. The key ergonomic win is the rectangular shape; it unzips completely, transforming the liner into a large, warm blanket. Perfect for draping over your shoulders on a chilly morning while enjoying your Coffee.
Performance & Features
Used alone, the Coleman Stratus fleece sleeping bag liner has a comfort rating of 10°C, which is ideal for hot summer nights or if you are sleeping indoors. This essentially gives you a dedicated summer sleeping bag that’s soft and lightweight.
Its secondary and most important function is as a thermal booster. When zipped inside a larger sleeping bag, the liner effectively adds 12°C of extra warmth. This feature can genuinely transform a three-season bag into a four-season setup. Saving you the expense and bulk of buying a separate cold-weather bag. The fleece creates a thermal barrier, trapping heat effectively. The ZipPlow system prevents annoying zipper snags, and the two-way zipper allows you to adjust ventilation from the top or bottom quickly. This level of reliable performance, coupled with the soft fleece, makes the Coleman Stratus fleece liner a highly effective piece of Sleeping Gear.
Gear That Complements Your Camping Setup
Since the coleman stratus fleece sleeping bag liner boosts your warmth so well, you can often get away with a lighter main bag. Browse our Sleeping Bags and Sleeping Pads categories for compatible gear.
If you’re touring with a 4WD, the liner fits perfectly under the cover of your Rooftop Tent. For those focused on keeping their gear clean and lasting longer, check out our selection of Camp Hygiene essentials.
The Coleman Stratus Fleece Sleeping Bag Liner is a versatile and reliable piece of kit that deserves a spot in your camping setup.
It performs excellently as both a standalone 10°C sleeping bag for warmer nights and a thermal liner, adding a noticeable 12°C of warmth when you need it most. The soft fleece is genuinely comfortable, and practical features like the ZipPlow zipper and machine washable fabric mean it’s built for durability and easy maintenance. If you want to boost the temperature rating of your current sleeping bag without spending money on a whole new one, this fleece liner is an efficient, cozy solution.
It is the perfect companion for car campers, travelers, and those who camp across multiple seasons. It's especially useful for anyone who wants a clean, hygienic layer between them and their main sleeping bag, or for boosting an existing three-season bag's performance on cold trips.
The ability of the Coleman Stratus fleece sleeping bag liner to instantly add 12°C of warmth means you can stretch the use of your existing Sleeping Bags far further into colder temperatures. Given its comfort, durability, and dual-purpose function (liner or light bag), it offers exceptional value and is a smart investment for versatile warmth.
