Features

Design benefits

optimum temperature
Comfort temperature: 5°C, limit temperature: 0°C. 700CUIN
lightweight
For size L. Weight: 830g. Volume: 6.2L. Stuff Bag
sleeping quality
Mummy shape, anatomical hood and ergonomic foot box
ease of use
3/4 length, anti-pinch zip.

Design details

What are the features of the MT900 5°C sleeping bag?
Ergonomic hood with drawcord. 2-Way YKK zip, with anti-pinch system for optimal ventilation. A baffle along the zip prevents heat loss. Inner zipped pocket. 2 Buckles at the base of the bag so you can hang it up and dry it. Comes with a perforated fabric storage bag.
What is the comfort temperature?
All our sleeping bags display the comfort temperatures tested by an independent laboratory (AITEX), in accordance with the international standard ISO 23537-1: 2022. The comfort temperature is the minimum temperature at which an average person (woman, 25 years old, 60kg, 1.60m) is comfortable, without feeling cold, in a relaxed position. Choose your sleeping bag according to this criterion.
What is the limit temperature?
The limit temperature is the minimum temperature at which an average person (man, 25 years old, 70kg, 1.73m) can sleep in a curled-up position without feeling cold. And, for your information, the extreme temperature is the minimum temperature at which a person can survive (risk of hypothermia) for 6 hours. This refers to safety, and not 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. If you use a less insulating mattress, the thermal performance of your sleeping bag will be lower. We therefore recommend that you use an insulating mattress for better thermal comfort.
Weight and dimensions of the MT900 5°C sleeping bag (manufacturing variations of +/ -5%).
Size S (users up to 1.59m): 670g (incl. 280g of down/feathers) Folded dimensions: L 27cm Ø 15cm. Volume 4.7L Size M (users between 1.60m and 1.69m): 750g (including 322g of down/feathers). Folded dimensions: L 27cm Ø 16cm. Volume 5.5L. Size L (users between 1.70m and 1.84m): 830g (including 370g of down/feathers). Folded dimensions: L 27cm Ø 17cm. Volume 6.2L. Size XL (users between 1.85m and 2m): 930g (including 420g of down/feathers). Folded dimensions: L 31cm Ø 18cm. Volume 6.9L.
How durable is the MT900 5°C sleeping bag?
The outer material is made from 100% polyamide in 10 denier (weighing 20g/sqm) and a 30 denier ripstop fabric. This canvas can withstand up to 80,000 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 35g/sqm.
How can I keep warm in the MT900 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!
How to care for your MT900 5°C sleeping bag
Even if you regularly use a bag liner, you will need to wash your down bag from time to time. You will find all the relevant information on the Decathlon Sport website. Summary: 1/ machine wash, 30°, with 2 or 3 tennis balls. Gentle spin cycle. Use special down detergent (ref: 8609821) 2/ Tumble dry with 2 or 3 tennis balls, and repeat 2 or 3 times until completely dry.
How to repair your MT900 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.

Specifications

Comfort Temperature

5 ° celsius

MinimumMaximum

A temperature to which a person in a relaxed posture is generally in thermal equilibrium and is neither cold nor hot (determined for a standard person and under normal conditions of use).

Number of Season(S)

BasicAll seasons

The number of seasons determines the condition of usage of the sleeping bag. 1 and 2 seasons sleeping bags are for a spring-summer usage whereas a 3 season sleeping bag will be perfect in autumn times. 4 season sleeping bags are conceived to be used during winter or low temperatures.

Main Material

Down

The main material of a shoe is the main material used to make the outer part of the shoe, generally the upper and sole. The main material influences the durability, comfort and aesthetics of the shoe.

Details

frequency	intensive
number of persons	1 person
hood	with hood
main material	down
number of season(s)	3 seasons
volume (in L)	6 L
length (in cm)	180 to 220 cm, 160 cm to 189 cm
condition	new
weight (in g)	830 g
lining material	down
comfort temperature	5°C
sleeping bag shape	sarcophagus
connectible	not-connectible

Composition

Filling: 10.0% Grey Duck Feather, 90.0% Grey Duck Down

Lining: 100.0% Polyamide

Main fabric: 100.0% Polyamide

Carry bag: 100.0% Polyester

Bag cover: 100.0% Polyester

Coating: 100.0% Polyurethane

Usage & care

5-year warranty

Care instructions
Storage
To keep your MT900 5°C sleeping bag fluffy and help retain its thermal properties, it is best to store it loosely in the storage bag provided.
Cleaning
- Do not dry clean.
- Drying in tumble dryer possible. Low temperature, maximum drum exhaust temperature 60°C.
- Do not iron.
- Maximum wash temperature of 30°C. Very moderate treatment.
- Bleaching excluded.
- Secure fasteners closed before washing. Gentle cycle, machine wash cold with like colors. Wash with mild detergent or down wash and 2 clean tennis balls. Do not use bleach or fabric softener. Rinse thoroughly at least twice. Tumble dry low with 2 clean tennis balls. Remove promptly and fluff after each cycle until dry. Do not dry clean, iron or steam. Store in a cool and dry location.

Trekking Sleeping Bag mt900 5°C Down

Features

Design benefits

Design details

Specifications

Details

Composition

Usage & care

Care instructions

Storage

Cleaning

Environmental impact

Ecodesign approach