Recently Viewed

Heat Reflective Bedding Blanket

Heat Reflective Bedding Blanket
 Heat Reflective Bedding BlanketHeat Reflective Bedding Blanket 
Our Price:  £39.99
List Price:  £59.99
Saving Of:  £20.00 (33%)
(Inc. 20% VAT)


No stock, delayed despatch

CLOSING DOWN SALE - Up to 50% Discount or more on List price across the store only until the end of May. While stocks last!

Product Code:  XA107
Brand:  Thermartex


This product is one of those hidden gems, which once found and used to uprate your sleep or travel system, you will never leave out of your kit bag ever again. Like all great products it falls into the 'simple' and 'invaluable' category.

Over the last 10 years we have been selling it the UK manufacturer has improved it with each incarnation. The latest has resulted from feedback from our customers as to how this blanket is used and performs in the wild.

These improvements include:
Weight: 212gm
Size: 2m x 1.6m
Material supplied full width cut using an ultrasonic knife giving a soft and anti-fray edge to allow users to cut, sew and hem as they wish. (Please note that there may be a few fine holes along the edge from the manufacturing process.)
The material is now calendared, which means it is Down Proof, should you wish to use insulation within it.
The material has a fluorocarbon coating.
Reflectivity: 75%
Water resistant: Improved DWR to reduce water marks on surface and prevent ingress. This has been a major improvement as many customers had used the previous versions in wet conditions, which in some cases damaged the surface. You are now able to put this blanket through a washing machine, cold wash only, no detergents.
Showerproof: See above, this is a vast improvement.


  • Colour Bottle Green
  • Downproof
  • Uses a rip stop nylon British made fabric
  • Larger than before at 1.6m x 2m
  • 75% reflective (up from 65% on the previous version)
  • Total blanket weight 212 grams
  • All edges are cut using an ultrasonic knife giving a soft and anti-fray edge
  • Can now be washed by hand (See box for details)
  • Water resistant/Showerproof (Not waterproof)
  • Breathable (Reduces moisture)

As I write this on a very cold winters day with the blanket over my knees (aww bless) the reflectivity and heat retention is instantly noticeable as before. The previous material did have more of a silk like feel to it, whereas this feels slightly stiffer more akin to a rip-stop nylon as mentioned above.

Although heavier than before, the idea of supplying a larger piece of fabric is to allow end users to cut, hem and sew the material into whatever suits their needs. Many people have made sleeping bag liners, or sleeping bag covers from the product and obviously this will reduce the weight and volume all in one go.

It certainly would benefit from some kind of attachment system to suit your needs, to keep it in place when sleeping on the ground or in a hammock. It is just as slippy as before!

The uses are still the same and as before here is some background and suggestions on how to best use the material.


This is an unusual product, but one which many outdoors people or travelers will have longed for at least once in their life.

How often have you been chilled at night in your sleeping bag, and just wanted another 'layer' or more 'insulation' to throw over you to retain that valuable warmth? Perhaps lying back in hammock and wondering if that sudden chill will last all night?

Maybe you have been on a long overnight bus journey, or stuck in an airport in the night, getting cold with all your sleeping gear out of reach in the luggage system?

Possibly you have been watching the sunset, sitting on a hill or beach, gradually becoming aware that the daytime clothes you are wearing are not going to keep you comfortable for much longer?

I can think of countless occasions like the above, when I have been 'chilled' or very cold, but aware that to increase my warmth at that moment would have meant carrying another 'insulation' layer or 'clothing' in my pack on the way to wherever I camped. Something I just (a) didn't have the space for and (b) didn't want to carry the extra 'just in case' weight.

Ideally the solution for any of the above would be;

(a) as light as possible (of course)
(b) with minimal bulk (easy to pack)
(c) highly heat reflective
(d) non-metallic
(e) silent (unlike a space blanket)
(f) highly breathable and finally
(g) water resistant (to prevent spills on the bag)

The solution has come from a small unknown UK manufacturer and this item has been around quietly for a while, however it was recently sent to me to test as the designer thought we would appreciate the features more than most. As it happens, quite rightly!

So I tried it as exampled above and found it to be a remarkable product doing exactly what it says on the tin. I've slept out on these frosty nights in a light sleeping bag which would normally be 1 or 2 'seasons' too light and thrown the blanket over me 'silver side' out. I guess it works in simplest terms just like the NeoAir sleeping mat. By reflecting heat back towards the user. Although I am unable to measure the amount of reflected heat I can assure you that I was a darn site warmer than I would have been without it. The effect was very noticeable.

It has the soft tactile fee of rip stop nylon. It is silent and extremely breathable, so there were no damp condensation patches on the bag anywhere beneath it. There was naturally some frost condensation on the shelter skin which fell onto the blanket but didn't soak through at all. So it is water resistant to an acceptable level.

In use you will find the silver side changes tint as it rubs against other surfaces. This is perfectly normal and doesn't effect performance, meerly the 'sheen' in the manufacturing process.

How to use it

If the blanket is purely against your skin then the green side will be towards you. (If the silver side is touching your skin then there less reflectivity taking place because of 'conduction') If you are wearing clothes or inside a sleeping system then the silver side is towards you and this will reflect back any escaping heat.

The only negative issue I found with it, was because it was 'so' light I could hardly feel it was there. It was also very 'slippy' and so a bit of DIY would be needed to put some velcro tabs or similar on the edges to hold it in place, however you intend to use it. If for whatever reason you wanted the material more water resistant you could possibly spray on some Nikwax TX Direct, (but ONLY onto the Green side) but for normal use it isn't necessary.

It isn't classed as a 'survival blanket' (and shouldn't be used that way) but a very simple and effective way to 'up-rate' your sleep system for minimal bulk. Ideal for cold sleepers, the unexpected frost, to stuff in small spaces in a pack, hammock sleeping, traveling and well, virtually anytime you want a little comfort in your outdoor life!

Please note: If it becomes damp, ie left on wet grass, the silver surface may appear patterned. However we have confirmed with the manufacturer that it does not effect performance in any way, even though the silver side may look creased.

Try it, you will be pleasantly surprised!!

Manufacturers comments

The “Thermartex®” launch product is the “Bedding Blanket”. It can be used on it's own or on top of other bedding and is suitable for use in any dry environment both indoors and outdoors. Measuring approximately 1.6m x 2m and weighing only 212g the aluminized woven rip-stop nylon blanket is highly breathable and reflects up to 75% of radiated body heat. It is ideal where thermal performance, weight and packing size are important. It is primarily intended for use as a camping blanket, travel blanket, sleeping bag or normal bed cover, but has many other applications.

The blanket should be kept away from fire and other sources of ignition. It should also be kept away from salt and other chemicals as these will damage the heat reflective coating. It is not suitable for use as a Emergency/Survival blanket.

Note: This product can be washed by hand in cold water, using a non-biological handwash for delicates. After washing the silver surface may appear patterned this does not effect performance. Full details are on the packaging for maximum long life care.

Average Rating (26 Reviews):  
Write a Review and share your opinions!

Heat Reflective Bedding Material
28 January 2022  | 

Been using the (V3) blanket in recent weeks, with nights falling below freezing temperatures. As a layering system for a sleeping bag or quilt, im very pleased, no condensation and definitely a warmer sleep (cut drafts too). The material is very slippery, but when kept in place, a very good simple layering solution for my quilt.

Was this helpful to you?  Yes  /  No

0 of 1 people found this review helpful.

Light and Effective
09 January 2021  | 

I have only had a couple of opportunities to use this product but so far I am very impressed. For something so thin it can really help keep the cold at bay when used as a shawl.
I have used it around the outside of my 10 degree comfort rated sleeping bag in temperatures as low as 5 degrees. While I did not get cold, and I am generally a cold sleeper, I think it would have worked better wrapped around me, inside the sleeping bag.
I have not had a chance to test this yet due to Covid restrictions, but I am looking forward to doing so.

Was this helpful to you?  Yes  /  No

1 of 1 people found this review helpful.

Another use for this -- sunshade.
11 August 2018  | 

I've tended to have this as a back up for night, and only used it a couple of times. BUT last week, on a scorching campsite, it was marvellous. It sat on top of a rigged-up basha, attached by a couple of clothes pegs, and helped make an amazing cool shady space. The sun was so hot that there was a surprising amount coming through the basha (standard Highlander job) but nothing at all got through the bit covered by the blanket. Definitely bear this in mind next heatwave we get.

Was this helpful to you?  Yes  /  No

2 of 2 people found this review helpful.

Heat Reflective Bedding Blanket
28 July 2018  | 

North Wales walking trip in the recent hot weather. MSR Elixir 2, Thermarest Evolite mat and a Snugpak 5 degree bag should of had it covered in the comfy sleeping department, but NO. Snowdonia had a 0 degree at night thing going on and I was cold. I had packed the reflective blanket and it was great. Sleeped well with it over and on the 3rd night inside my bag. Light weight, easy to pack and warm. Recommended.

Was this helpful to you?  Yes  /  No

3 of 3 people found this review helpful.

Thermartex Blanket
25 March 2018  | 

I've got these as a lightweight (which they most certainly are!) solution to making summer bags a bit warmer as necessary. I've yet to sew them into bag sleaves, but they already work very well as insulating blankets.

Was this helpful to you?  Yes  /  No

This review has not been appraised.

Thermartex Blanket
27 December 2017  | 

Used this over a down quilt in a hammock in just above freezing temperatures. The blanket worked well at trapping heat. It is also light and packs down very small. If used over a quilt or sleeping bag it needs to be used silver side out.

Was this helpful to you?  Yes  /  No

2 of 2 people found this review helpful.

Heat reflective blanket
14 May 2017  | 

Easy to pack easy to use does what it says a real boon on a cold night and works quickly

Was this helpful to you?  Yes  /  No

This review has not been appraised.

Winter wild camp
14 February 2017  | 

Just used this in -5 on frozen grass on a mountain side in the Lake District, under a Neo Air Thermarest with a winter goose down sleeping bag inside a Rab Ridge Raider, I was toastie and snug all night long

Was this helpful to you?  Yes  /  No

This review has not been appraised.

28 July 2016  | 

Good blanket, Handy for ad hoc dozing in the afternoon. keeps body heat in. fits neatly inside a borrowed stuffsac. Havent used it in earnest yet, however I feel it will work well

Was this helpful to you?  Yes  /  No

0 of 1 people found this review helpful.

Excellent service as usual
07 June 2016  | 

I have always been extremely happy with the products and service offered by Backpackinglight. The heat reflective blanket was purchased to add warmth to the sleep system for our tent. Very lightweight and very effective.

Was this helpful to you?  Yes  /  No

This review has not been appraised.

Read all 26 customer reviews...

Related Products
Mountain Raid 1.0 Synthetic Sleeping Bag

£199.99   £151.99

Mountain Raid 1.6 Synthetic Sleeping Bag

£219.99   £159.99

Reflective Quilt/Sleeping Bag Cover

£119.99   £75.99