Sleeping bag liners are an ideal product for backpackers and campers. They up the warmth of your favorite bag (instead of having multiple bags for multiple climates) and they add an extra layer of cozy to your night’s sleep.
What’s new with Ignik — a brand build on the mission of sustainable outdoor heat — is their heated sleeping bag liner. Plug in the sleeping bag liner, press a button, and Ignik’s patented technology will pipe electric warmth down your body.
The Ignik Heated Sleeping Bag Liner doing what it does best on a chilly morning in Big Sur, California.
The Ignik Heated Sleeping Bag Liner is built for Arctic explorers, winter backpackers, and chilly car campers. It’s a product that bridges the divide between actual survival and cozy camp luxury, and we’re impressed.
The Heated Sleeping Bag Liner can add around 20 degrees to your bag’s standard temperature rating, a range that other liners simply cannot match. It weighs just over a pound, comes with a stuff sack, and has two Radiant Carbon Strand (RCS) HeatZones to warm up your chest and legs. The included adapter turns nearly any USB-capable camp battery you have into a power source, and it runs off burlier 12 volt batteries as well.
The Ignik Heating Sleeping Bag Liner has a zipper for easy entry, a drawstring for closing in the warmth, and a button for adjustable heat settings.
If your idea of an excellent night under the stars is impressive warmth, the Ignik Sleeping Bag Liner is your ticket.
See the Ignik Heated Sleeping Bag Liner
Unique Features of the Ignik Heated Sleeping Bag Liner
The unique feature here is the obvious one: this sleeping bag liner uses electricity to increase the warmth of your sleeping bag. It’s the kind of item you can throw in the car if you see a cold snap in the weather forecast, making your campout downright snuggly even if there’s a fresh blanket of snow in the morning.
The Ignik Heated Sleeping Bag Liner in its stuff sack. Nalgene 32 oz for comparison.
For backpackers who regularly trek into frigid climates, the 1-pound weight rivals or outright beats the extra weight of a 4-season sleeping bag. Plus, you’re likely to have a power source on you already, and this allows you to use your regular bag while preserving your body’s core temp.
The Ignik Heated Sleeping Bag Liner works with 5 volt or 12 volt batteries and power supplies. The battery is not included with purchase, but Ignik rightly assumes that you have (and probably already bring) a capable battery on your trips. There are even some high-powered lanterns that can serve as batteries.
The Heated Sleeping Bag Liner works at full capacity with 12 volts — these supplies and batteries are more likely found in a car camper’s stash of gear. With this much power the individual strands on the liner can get up to 140 degrees, but they pulse up to that temperature then pulse down, providing a usable heat that ebbs and flows to create overall increases in warmth of nearly 20 total degrees. You can also control the amount of heat with Ignik’s button.
Ignik’s button changes colors to three modes (Red is high, Green is Medium, Blue is Low). A 5 volt battery and Ignik’s included adapter are pictured here.
With 5 volt batteries the Heated Sleeping Bag Liner will automatically operate in Comfort Mode, which is essentially at 50% of the full heat described above. In our testing this was a constant, pleasant warmth that turned a moderately chilly night — both in the sleeping bag and while sitting out to watch the stars — into a comfy, cozy experience.
You can use just about any 5 volt USB battery with Ignik’s included adapter, or a 12 volt battery or power supply, but Ignik lists a few models on their site that work exceptionally well. Larger batteries with a higher Amperage output will work better, too.
Radiant Carbon Strand Technology
Radiant Carbon Strand Technology is what powers Ignik’s Heated Sleeping Bag Liner (and all of its heating products). It’s a patent-pending tech that aims to reinvent, and seriously improve, the clunky wires in heated blankets of yore.
The RCS HeatZone’s are labeled on the inside of the Heated Sleeping Bag Liner.
The main new element is that it uses carbon fiber to transmit heat. Carbon fiber is ultralight lightweight and ultra-strong, and when used as a heat conductor it’s also waterproof. For outdoor gear this combination is perfect, and it’ll will last much longer than traditional copper wires used in most heating blankets.
This is the extent of wires you see and have to navigate with the Ignik Heated Sleeping Bag Liner. And they store in a zippered pocket.
There are practically no wires in the Ignik Heated Sleeping Bag — a few spill out of the zippered pocket where Ignik’s included USB adapter and your power supply go, and you can feel two slightly crinkly zones on the liner, but that’s it. It packs up quickly and in a small package, fitting in a backpack or car with ease.
See the Ignik Heated Sleeping Bag Liner
Who is Ignik?
Ignik is an outdoor brand built with arctic exploration in mind, creating sustainable heating products for outdoor use. This includes patenting new technology and giving back to Arctic wilderness preservation projects. Their products include a propane sleeve to make fuel work in frigid climates, a 2-in-1 stove, and a newly launched their heated sleep system line.
See the Heated Sleeping Bag Liner and learn more about Ignik.
This article is sponsored by Ignik.
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What amount of additional warmth does the liner provide without using the battery assist?
Hey John,
Thanks for reading and asking! The liner is made of a bluesign approved 100% recycled polyester, and while it doesn’t have any insulation inside (like down or synthetic fill), it is a thick-ish fabric. Ignik said that while it hasn’t been lab tested it should add about 10 degrees to your sleep system without power. Hope that helps!
how many watts per hour does it use?
It does output 40W, but you’ll want to contact Ignik for further clarification.