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Simond MT500 41°F Polyester Sleeping Bag
Redesigned to be lighter and more compact, this padded sleeping bag is built to better meet your needs on the trail. A 3/4-length zipper makes it easy to get in and out.
Free shipping over $49
Free returns
Free pickup
San Francisco, 735 Market St. Options
Select an available color and size to see options.
Product Features
Optimal temperature
Comfort temperature: 5°C, lower comfort limit: 0°C. Synthetic wadding filling
Lightweight
For size L. Weight: 1050 g.Volume: 9.5 L. Stuff Bag
Easy to use
3/4 length, anti-pinch zip.
Adjustable
Hood adjustable with elastic cord and drawstring
Water repellent
Surface-treated outer fabric (PFC-free) so the water slides off
Questions & Answers
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Product Customer Reviews
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I bought this sleeping bag for a safari in Africa where we spent the night in tents in outside temperatures from 15 to 0 degrees Celsius, but one night it was -5 degrees Celsius. The sleeping bag worked very well, I was warm without having to heat it. It folds quickly and easily. It is light (it was in hand luggage on the plane). Pleasant to the touch, cool :-)
Ideal mattress for spring and early autumn
The sleeping bag is nice (I have a yellow-gray one from 2022) and warm for me. I am a 175cm 95kg guy (I am usually quite warm) and I use this sleeping bag comfortably even down to 0 degrees (hammock, frosty tarp in the morning) dressed in one thermal layer. My wife 160cm 60kg (she is usually cold) complains about the cold in such a sleeping bag at much higher temperatures. The advantages would definitely include a good compression sack and zippers on two sides with the possibility of fastening sleeping bags. From the disadvantages: - The sleeping bag is relatively narrow in the back and despite the height appropriate for size L, I had to take XL. - I do not like 3/4 zippers because you cannot stick your feet out of the sleeping bag to regulate the temperature inside. - When fastening the sleeping bag, the material very often gets caught. It is even worse in the 15-degree version because the entire sleeping bag is more limp than the 5-degree one. Overall, for the money I highly recommend it, but I advise you to think carefully about the temperature version and size.
Perfect for mountain trekking in summer, light and compact for synthetic. Can also be used in spring and autumn in the plains in temperate zones. I chose size L for 1m73 and 63 kilos small build, it fits me well
My son was delighted with this sleeping bag. It was great for us to be able to compare the different options in store and for stock to be available to buy on the day.
As a bivouac enthusiast, and someone who likes to spend their nights in a hammock, I needed a good sleeping bag, without being able to spend 300€ on it. This bag is simply great! Light and very compact, you just need to plan to be covered from the wind/humidity and you will be able to have a very good night outdoors, from spring to autumn! (or even at the end of winter) A hot water bottle at the bottom of the feet can be a real lifesaver for people who have the curse of cold feet (like Raynaud's syndrome)
Very good sleeping bag, keeps you warm with enough space inside. The only downside is folding the bag to put it back in the cover the first time, difficult because the material of the bag is very slippery (a knack to get the hang of).
Although a bit pricey, it's very light and easy to fold and store. It takes up little space. We didn't experience extreme temperatures, but it worked out very well in a campervan during the winter in Iceland.
Very warm
Down jacket used for treks and week of field training. Perfect, keeps you warm.
The only note about the size. L is huge. If you are not 2 meters tall, take M :)
used for nights under the stars in temperatures of 6-7° at night and I really wasn't cold and I fit my 1m94 in without problem. The outer fabric is perhaps a little too "synthetic" and slips on the groundsheet. the zipper is hard to operate
The product can be used in very cold weather, about 10 degrees, compact, beautiful color
Used this winter when going out in the van, narrow sleeping bag, easy to store, pleasant to the touch.
Additional Product Information
Composition
Padding: 100.0% Polyester ; Lining: 100.0% Polyamide ; Main fabric: 100.0% Polyamide ; Carry bag: 100.0% Polyamide
What are the features of the mt500 5°c sleeping bag?
Ergonomic hood with drawcord.Double collar to prevent heat from escaping. A baffle along the zip prevents heat loss.Double-slider zip for optimal ventilation.Inside pocket.
What is the comfort rating?
We display the comfort temperatures on all of our sleeping bags, tested by an independent laboratory (AITEX) in compliance with International Standard ISO 23537-1: 2022. The comfort temperature is the minimum temperature that an average person (woman, 25 years old, 60 kg, 1.60 m) is at ease, without feeling cold, in a relaxed position.Choose your sleeping bag according to this criterion.
What is the lower temperature limit?
The temperature limit is the minimum temperature at which an average person (man, 25 years old, 70 kg, 1.73 m) can sleep curled up without feeling significantly cold.And for information, the extreme temperature is the minimum temperature at which a person can survive (risk of hypothermia) for 6 hours.It is a measure of safety, and not of comfort.
Which mattress should i use this sleeping bag with?
The protocol for measuring the thermal performance of a sleeping bag is to use a mattress with a thermal resistance corresponding to an R-value of 4.8.This means that by using a less insulating mattress, the thermal performance of your sleeping bag will be lower.We recommend that you use an insulating mattress for better thermal comfort.
How can i keep warm in the mt500 5°c sleeping bag?
Dress simply (1 layer of clothing, ideally made from merino wool, is enough).Protect your extremities with a hat, gloves, socks and hand warmers if needed. Use a sleeping bag liner to optimise heat and avoid over-washing your sleeping bag Choose a mattress with good insulation (R-value> 3).And an extra tip: contract your muscles (70% of the energy consumed is converted into heat) but do it without moving as this could create a draught!
Weight and dimensions of the different sizes of mt500 5°c sleeping bag
Size S (users up to 1.59 m): 900 g.Folded size: L 35 cm diam. 17 cm. Volume 7.5 LSize M (users between 1.60 m and 1.69 m): 950 g.Folded size: L 35 cm diam. 18 cm.Volume 8.5 L.Size L (users between 1.70 m and 1.84 m): 1050 g.Folded size: L 35 cm diam. 19 cm.Volume 9.5 L.Size XL (users between 1.85 m and 2 m) : 1110 g.Folded size: L 35 cm diam. 20 cm.Volume 10.5 LWeight, volume and dimensions can vary by +/ -5% due to manufacturing tolerances.
How to repair your mt500 5°c sleeping bag
On a trek, you can snag a sleeping bag, it happens! The good news is that it can be repaired to prevent the tear from getting bigger or the synthetic fibres from escaping.To do this, we recommend that you use self-adhesive repair patches (ref: 8584596).If you don’t feel comfortable doing this yourself then a heat-bonded patching service is available at the workshop of your Decathlon store.
Do you want to know more about the wadding used in your mt500 5°c sleeping bag?
We use 3 overlapping layers of 60 g/m2, 100% polyester wadding for the top and bottom of the sleeping bag.The wadding is made from silicone-coated spiral fibres that make it highly compressible and highly durable.Despite its low thickness, it has high insulation properties thanks to the air trapped inside, and remains lightweight. It retains its warmth even when wet.
How durable is fabric of the mt500 5°c sleeping bag?
On the outside, it is made of 100% polyamide, 38 g/m², 20 denier. This fabric can withstand up to 20,000 abrasion cycles.Durability is calculated using the Martindale test (Standard 12 947-2). This test involves rubbing the bag material against another material to assess the product's abrasion resistance.The inner lining is made from a 100% polyamide fabric in 20 denier, weighing 35 g/m2.
Storage instructions
To keep your MT500 5°C sleeping bag fluffed up and retain its thermal performance, it’s best to store it loose out of its carry bag.
Origin
Imported
Simond MT500 41°F Polyester Sleeping Bag
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Heavy products return policy
If you return a product you will receive a refund for the purchase price plus any applicable sales taxes, less any non-refundable charges.
Decathlon will cover all shipping costs associated with your return except for items excluded from our return policy such as bikes, basketball hoops, snowboards, surfboards, tents, and other larger / heavier items.
Return costs for heavy products:
| Weight Thresholds | Shipping within California | Shipping outside of California |
|---|---|---|
| > 9 lbs | $20.00 | $25.00 |
| > 30 lbs | $50.00 | $65.00 |
| > 100 lbs | $100.00 | $125.00 |
| > 200 lbs | $200.00 | $230.00 |
If you return a product at any of our store locations, we will gladly help you find the best alternative product or refund you on the spot.
