What is comfort temperature?
All our sleeping bags feature comfort temperatures tested by an independent laboratory (AITEX) in accordance with European standard ISO 23537-1:2022. The comfort temperature is the lower limit of comfort at which a person in a relaxed posture is in overall thermal equilibrium and neither cold nor hot (determined for a standard woman and under normal conditions of use).
Choose your sleeping bag according to it.
And what is the comfort limit temperature?
The comfort limit temperature is the temperature at which a person curled up in a sleeping bag is in overall thermal equilibrium and neither cold nor hot (determined for a man and under normal conditions of use).
We recommend using an insulating mattress to optimize your thermal comfort.
An important clarification concerning ISO 23537-1
For the purposes of this standard, the protocol for measuring the thermal performance of a sleeping bag uses a mattress whose thermal resistance corresponds to an R-value of 4.8.
This means that if you use a less insulating mattress, the thermal performance of your sleeping bag will be lower.
We therefore advise you to use an insulating mattress to optimize your thermal comfort.
A few tips before you slip into your sleeping bag
Dress simply (1 layer of clothing is enough).
Warm up your extremities: hats, gloves, socks, warmers, frictions... A flask of hot water can be used as a hot-water bottle (if there's no risk of accidentally opening it!).).
Contract your muscles (70% of the energy consumed is transformed into heat), but without making any movements that generate cold draughts.
Use a sleeping bag sheet to optimize warmth and avoid over-washing your sleeping bag.
Shape
Sarcophagus shape to optimize thermal insulation (no heat loss due to limited air circulation and entry) and compactness, implying reduced freedom of movement.
Shoulder width 72 cm, foot height 26 cm in size L.
Weights and dimensions
Size M: 850 g, user between 1m60 and 1m70. Bag dimensions: Ø 16 x 34 cm. Volume 6.9 liters. 440 g down/feathers.
Size L: 950 g, user between 1m70 and 1m85. Bag dimensions: Ø 17 x 34 cm. Volume 7.8 liters. 500 g down/feathers.
Size XL: 1050 g, user between 1m85 and 2m. Bag dimensions: Ø 18 x 34 cm. Volume 8.7 liters. 560 g down/feathers.
Features
Wrap-around anatomical hood with drawcord adjustment.
Anti-cold flap along the zip to prevent heat loss.
Double-slider zips for optimal ventilation.
H-shaped box structure to limit thermal bridges.
The advantages of duck down and feather filling
Down's capacity to expand gives it 3 qualities for mountain sports:
- Thermal insulation thanks to the air trapped in the down and feathers
- Ultra-lightness: for equal warmth, feathers are lighter than synthetic wadding. This saves even more weight in the backpack
- Ultra compressibility
How do you measure the loft of down and feather fillings?
Loft represents the thermal insulation capacity of down by "trapping" a certain volume of air. It is expressed in CUIN.
So the more down inflates (the higher the number of CUIN), the more space it occupies, the more air it traps and therefore the better it insulates.
For this sleeping bag filled with 90% down / 10% feathers, the inflation capacity is guaranteed to be greater than or equal to 800 CUIN (IDFB international standard).
How do I care for a down sleeping bag?
Even if you regularly use a duffel sheet, you'll still need to wash your down bag from time to time. Follow our advice by copying the link below:
https://www.forclaz.fr/comment-entretenir-et-reparer-un-sac-de-couchage-en-plumes
In summary:
1/ machine wash, 30°, with 2 or 3 tennis balls. Spin gently.
Use special down detergent (ref: 8609821)
2/ tumble dry, with 2 or 3 tennis balls, repeat 2 or 3 times until completely dry.
How to repair your sleeping bag?
On a trek, a tear in your sleeping bag can happen! The good news is that it can be repaired to prevent the tear from growing larger and feathers from escaping.
We recommend that you use our self-adhesive repair patches (ref: 8584596) or ask one of our technicians to carry out the operation in your store's workshop Decathlon.
More info:
https://www.forclaz.fr/how-to-maintain-and-repair-a-feather-sleeping-bag.
Warranty
This sleeping bag is guaranteed for 5 years from the date of sale indicated on the sales receipt. The product covered by the warranty will be repaired or exchanged free of charge. The warranty covers defects in your sleeping bag excluding those resulting from normal wear and tear and those resulting from abnormal use. This special 5-year warranty will only be granted on presentation of the product and the sales receipt.
