KingCamp CAMPCOZY 250 Heated Sleeping Bag Liner
KingCamp CAMPCOZY 250 Heated Sleeping Bag Liner
KingCamp CAMPCOZY 250 Heated Sleeping Bag Liner
KingCamp CAMPCOZY 250 Heated Sleeping Bag Liner
KingCamp CAMPCOZY 250 Heated Sleeping Bag Liner
KingCamp CAMPCOZY 250 Heated Sleeping Bag Liner
KingCamp CAMPCOZY 250 Heated Sleeping Bag Liner
KingCamp CAMPCOZY 250 Heated Sleeping Bag Liner
KingCamp CAMPCOZY 250 Heated Sleeping Bag Liner
KingCamp CAMPCOZY 250 Heated Sleeping Bag Liner
KingCamp CAMPCOZY 250 Heated Sleeping Bag Liner
KingCamp CAMPCOZY 250 Heated Sleeping Bag Liner
KingCamp CAMPCOZY 250 Heated Sleeping Bag Liner
KingCamp CAMPCOZY 250 Heated Sleeping Bag Liner

KingCamp CAMPCOZY 250 Heated Sleeping Bag Liner

$54.99 USD
Color
Color: Red
Heated
Heated

Special Feature

Flannel-Lined
Flannel-Lined

Special Feature

Winter
Winter
Quilted
Quilted
In stock, ready to ship

KM2622_RED

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Pairs well with

Smart Heating Comfort for Camping, Travel & Everyday Use

Three-Zone Heating. Soft Cotton Comfort. One Versatile Outdoor Layer.

Stay warm and comfortable wherever you rest with the KingCamp CAMPCOZY 250 Heated Sleeping Bag Liner. Designed to provide targeted warmth across the shoulders, back, buttocks, and feet, this heated liner helps create a more comfortable sleep and relaxation experience in cold conditions.

With a generous 198 × 66 cm (78.0 × 26.0 in) size, soft cotton flannel front, durable Oxford fabric backing, and 250g/m² shaped hollow cotton insulation, it can be used in multiple ways—as a heated sleeping bag liner, blanket, sleeping mat, or standalone layer.

Powered through USB, it works with compatible 5V/2A or 9V/2A power sources, including suitable power banks, phone chargers, and emergency power supplies, giving you a convenient way to bring warmth beyond the campsite.

Targeted Heat Where You Need It

The CAMPCOZY 250 features three built-in heating elements positioned to provide warmth across key areas of the body.

The heating coverage is designed around the:

  • Shoulders
  • Back
  • Buttocks
  • Feet

This broad heating layout helps distribute warmth across multiple contact areas rather than concentrating heat in just one spot.

Whether you're resting in a tent, relaxing in an RV, or using the liner inside a sleeping bag, you can add an extra layer of warmth when temperatures drop.

Important: Always follow the product's operating instructions and use a compatible USB power source. Do not leave a heated product unattended while powered on.

USB-Powered Heating for Flexible Use

You don't need a dedicated power station to use the heating function.

The CAMPCOZY 250 supports 5V/2A and 9V/2A USB power, making it compatible with suitable portable power sources such as:

  • USB power banks
  • Compatible phone chargers
  • Emergency jump starters with USB output
  • Other compatible USB power supplies

This makes it easier to bring personal warmth to the campsite, RV, car, or home.

Portable power in. Comfortable warmth out.

Heating performance depends on the connected power source, ambient temperature, insulation, and usage conditions.

More Than a Sleeping Bag Liner

A sleeping bag liner is only one way to use the CAMPCOZY 250.

Its large rectangular design allows it to function as a:

Heated Sleeping Bag Liner

Add a layer of warmth inside a compatible sleeping bag during colder camping trips.

Heated Blanket

Open it flat and use it as a blanket while relaxing at camp, in an RV, or at home.

Heated Sleeping Mat

Place it on a compatible camp bed or sleeping surface for an additional insulated and heated layer.

Standalone Resting Mat

With the heating turned off, it can be used as a comfortable insulated mat during milder conditions.

One product. Multiple ways to stay comfortable.

Large 198 × 66 cm / 78.0 × 26.0 in Design

The generous dimensions provide plenty of coverage for sleeping or relaxing.

The wide 66 cm (26.0 in) profile allows room to move and change sleeping positions, while the 198 cm (78.0 in) length provides full-body coverage for many adult users.

Use it inside a sleeping bag, on a camp bed, or opened flat as a blanket or mat.

Soft Cotton Flannel on Top

The front side features cotton flannel, providing a soft, comfortable surface for direct contact with the body.

The cotton material is designed to balance comfort and breathability, making it suitable for extended use in camping, travel, and home environments.

Durable Oxford Fabric on the Back

The reverse side uses lightweight 90g/m² yarn-dyed Oxford fabric, providing a durable and moisture-resistant backing for outdoor use.

It helps protect the liner when placed on camping beds, seats, or other outdoor surfaces while keeping the overall design relatively lightweight.

250g/m² Shaped Hollow Cotton Insulation

The CAMPCOZY 250 combines its heating system with 250g/m² shaped hollow cotton filling.

The filling provides an additional insulation layer, while parallel quilting helps keep the insulation distributed across the product and reduces shifting during use.

This combination allows the liner to provide comfort even when the heating function is switched off.

Comfortable in More Than One Season

The CAMPCOZY 250 isn't limited to winter.

Cold Weather

Use the USB heating function to add targeted warmth when temperatures drop.

Spring & Fall

Turn off the heating function and use it as a breathable insulated mat or blanket.

Summer & Indoor Use

Use it without the heating function as a lightweight resting mat or blanket when additional warmth isn't needed.

Heat when you want it. A comfortable mat when you don't.

Easy to Pack and Carry

When your trip is over, fold the CAMPCOZY 250 and secure it with the included elastic band before placing it into the storage bag.

Its portable design makes it practical for:

  • Camping
  • Hiking trips
  • RV travel
  • Car camping
  • Road trips
  • Picnics
  • Emergency car kits
  • Home relaxation
  • Guest sleeping arrangements

Designed for Outdoor and Everyday Comfort

From a chilly campsite to a long road trip, the CAMPCOZY 250 provides a flexible personal warmth solution.

Perfect For

  • 🏕️ Camping
  • ❄️ Cold-weather camping
  • 🚐 RV travel
  • 🚗 Car camping
  • 🥾 Hiking trips
  • 🧺 Picnics
  • 🏠 Home use
  • 🛏️ Sleeping bag layering
  • 🆘 Emergency car comfort

Specifications

Specification Details
Product KingCamp CAMPCOZY 250 Heated Sleeping Bag Liner
Expanded Dimensions 198 × 66 cm / 78.0 × 26.0 in
Front Material Cotton Flannel
Back Material 90g/m² Yarn-Dyed Oxford Fabric
Filling Material Shaped Hollow Cotton
Filling Weight 250g/m²
Quilting Parallel Quilting
Heating Elements 3
Heating Coverage Shoulders, Back, Buttocks & Feet
USB Power Compatibility 5V/2A and 9V/2A
Use Modes Heated Liner, Blanket, Mat, Sleeping Layer
Storage Storage Bag + Elastic Band

What's Included

  • 1 × CAMPCOZY 250 Heated Sleeping Bag Liner
  • 1 × Product Storage Bag
  • 1 × Elastic Band

Key Features at a Glance

3-Piece Heating System
Built-in heating elements provide warmth across the shoulders, back, buttocks, and feet.

USB-Powered Convenience
Supports compatible 5V/2A and 9V/2A USB power sources.

198 × 66 cm / 78.0 × 26.0 in Large Size
Provides generous coverage for sleeping and relaxing.

250g/m² Insulation
Shaped hollow cotton adds an insulating layer for added comfort.

Soft Cotton Flannel Front
Comfortable against the skin and suitable for use as a blanket or sleeping layer.

Durable Oxford Backing
90g/m² yarn-dyed Oxford fabric provides a practical outdoor-facing surface.

4-in-1 Versatility
Use it as a heated sleeping bag liner, heated blanket, sleeping mat, or standalone resting mat.

Compact & Portable
Folds down for convenient transportation and storage with the included bag and elastic band.

FAQ

1. What is the KingCamp CAMPCOZY 250?

The CAMPCOZY 250 is a USB-powered heated sleeping bag liner and multi-purpose camping mat. It can be used inside a compatible sleeping bag, as a blanket, on a camp bed, or as a standalone resting mat.

2. Where does the CAMPCOZY 250 provide heat?

The liner contains three heating elements designed to provide warmth around the shoulders, back, buttocks, and feet.

3. What power source does it use?

The heating system supports compatible 5V/2A and 9V/2A USB power sources. It can be used with suitable power banks, compatible USB chargers, and other compatible portable power supplies.

4. Does it come with a power bank?

No. The package includes the heated liner, storage bag, and elastic band. A compatible USB power source is required for the heating function.

5. Can I use it without turning on the heating?

Yes. The CAMPCOZY 250 can be used as a regular insulated mat or blanket with the heating function turned off.

6. Can I use it inside a sleeping bag?

Yes. It can be used as a heated sleeping bag liner inside a compatible sleeping bag. Make sure the liner and sleeping bag provide enough room for comfortable use and that the heating system is operated according to the instructions.

7. Is the CAMPCOZY 250 waterproof?

The back uses 90g/m² yarn-dyed Oxford fabric with moisture-resistant characteristics, but the product should not be treated as a waterproof sleeping mat. Avoid prolonged exposure to water and follow the care instructions.

8. Is the CAMPCOZY 250 machine washable?

The provided product specifications do not confirm machine-washability. Follow the manufacturer's care instructions for cleaning and maintenance, and keep the electrical/heating components protected from water as instructed.

9. Is it suitable for all seasons?

It can be used across multiple seasons. The heating function is particularly useful in colder conditions, while the heating can be left off when using the product as a regular mat or blanket during milder weather.

10. What size is the CAMPCOZY 250?

The expanded size is 198 × 66 cm (78.0 × 26.0 in), providing a generous full-body resting area.

  • 5 stars: 4 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
B
BrokeFarmerJohn
Works good

I really liked this heating pad, I would have loved this thing when I was younger and camped all the time in a tent.

I used it with a Audew jump box that has USB outputs for power and it seemed to heat up fine. Keep in mind it’s made to be in an insulated sleeping bag, if it’s in the open air it won’t feel like it gets that hot and it won’t in open air. Laying on it or in a sleeping bag you will notice the heat.

Flannel material feels like it has a lot of polyester in it, it’s not a cotton flannel. The back side is a slipperier material with little dots that look a lot more grippy than they are.

Im glad this heating pad exists. It’s like a low power electric blanket for your sleeping bag. Just gotta have a power bank to run it.

Hi BrokeFarmerJohn,

Thank you for taking the time to share such a detailed and helpful review of the KingCamp LunaRest Heated Sleeping Bag Liner!

We're thrilled to hear that it works well for you, especially when powered by your Audew jump box. You've provided an excellent explanation for future customers—you're absolutely right, the liner is designed to work within the insulated environment of a sleeping bag, and your point makes its intended use very clear.

We also appreciate your honest feedback on the material composition. Your description of it as a 'low-power electric blanket for your sleeping bag' is spot-on, and we're glad this product exists for your needs as well!

Thanks for choosing KingCamp. We hope it continues to provide you with many cozy and warm nights outdoors.

Best regards,
The KingCamp Team

E
Emily
Not a bad heated sleeping liner

I thought initially this was a bit expensive considering there is no power bank included. I then realized in general heated blankets are pretty expensive, and this is basically a more durable/specialized heated blanket. So I think the price is fine.

It doesn't get too warm, but that's to be expected as a power bank is only giving off 15-20 watts. You can't really change physics. Also note a 10000 mah power bank is about 38 Watt hours. If your bank's efficiency is 70%, you should expect a bit less than 2 hours on high. ((38*.7)/15).

The actual feel of it is ok. Nothing feels "nice" on skin, but this isn't really designed for direct contact anyways so it doesn't really matter

My only real complaint is I don't like it's input is USB A. I know a lot of power banks have USB A, though I really try to make everything have USB C.

Overall it works, it's light, the price is decent so I think 5 stars is reserved.

Hi Emily,

Thank you for taking the time to leave such a detailed and insightful review of the KingCamp LunaRest Heated Sleeping Bag Liner. We truly appreciate it!

We're so glad you concluded that the liner is a worthwhile investment. You've hit the nail on the head with your analysis—it is designed as a durable, specialized piece of gear, and your understanding of the power consumption and battery life is spot-on. It's fantastic to hear from a customer who gets the engineering behind the product!

We also appreciate your feedback regarding the USB-A input. This is excellent input for our product development team. As the industry continues to shift towards USB-C as a standard, we are actively considering this for future versions and will definitely pass your comment along.

It's great to know that the liner works well for you, and we're thrilled you feel it deserves a 5-star rating. We hope it provides you with many cozy and warm nights on all your future adventures!

Best regards,
The KingCamp Team

C
Cullinthemost
Great USB Heated Sleeping Pad Topper

I tested this out today to see how long it would run on one of my 10,000mAh battery packs. On high, it ran for just over 2 hours. This will pair well with my insulated sleeping pad and 20 degree down bag. I initially thought this was an actual sleeping bag style bag but it's a sleeping pad topper. It has elastic on each corner to hold it in place on the sleeping pad as well as some non slip traction dots on the bottom to help keep it from moving around. There is a small pocket that strores the connected usb cord and all you have to do is plug up your power bank and press the power button. There are 3 different heat settings as well as 3 different timer settings, 30 min, 60 min, and 120 min. It is a little rough feeling but not terrible and depending on how you use it you probably won't be sleeping directly on it. I will put it on my pad and put my down bag on top of it. On high, I could really feel the heat. I've used similar usb heating products and this one is comparable to all of the others I have used. I had no problem getting it back into the bag by folding it and rolling tightly but not excessively tight like some products. My bag isn't the warmest so I'm hoping this will extend my cold weather camping season a little longer. I will probably bring 2 power banks for each night I intend to need the extra warmth.

D
Distracted b.D.
A great way to be warm in the woods!

I couldn't wait for a camping trip to try this baby out so I used it instead of my heated mattress pad to take the Fall chill off my bed. I thought at first that the power cords had been left out of the package but soon discovered them in a little pocket where they can be stored. Of course I could have learned that faster by reading the directions, but what's the fun in that ? When I finally decided directions might be a good idea, I read that the warmer runs on 5 or 9 volt power banks. Thanks to Alexa I learned that phone chargers are 5 volt. Whew! I plugged it in, turned it to high and waited for the warmth. It took a little while for it to warm up (the directions explained that this would maybe happen on the initial use) but once it did warm up it provided a nice gentle heat which would be perfect for a sleeping bag. I ordered the warmer for my other half (Better Half?? Nah!) to take on his multi day/week ATV camping adventures. The warmer compacts fairly well and has a small duffle bag to store it in. It wont take up too much valuable equipment space. The fabric is sturdy but soft and has anti slip bumps on the underside plus straps which should keep it in place on the sleeping bag. It looks as though the fabric may be water resistant although the warmer is machine washable. Yay!!!!! Note... the fine print says that the warmer should not be in direct contact with skin so it goes under the sleeping bag. ( Or in my home trial under the comforter.) Speaking of the fine print... some of the directions are written in very small font. My old eyes couldn't read parts of them, so I just took a photo with my phone and enlarged them right up. Problem solved. There may be an online instruction manual but I didn't really need it. The only slight negative to the sleeping bag warmer is that it had a bit of that new equipment odor when I opened it up. Since it's machine washable that's no biggie. Now the next step is to send the sleeping bag warmer and the hubby off on an ATV camping adventure. I guess I will let him wait until Spring. Or I will send him to Florida. One or the other or both.

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