Trekking sleeping bag, 0°C, MT500

Sarcophagus shape and enveloping hood for this trekking sleeping bag designed for your nights in bivouac at temperatures between 0°C and -5°C.

What are the features of the MT500 0°C sleeping bag?

Ergonomic hood with drawstring. Double collar to prevent heat from escaping. Anti-cold flap along the zip to prevent heat loss. Double-slider zip for optimal ventilation. Inside pocket.

What is comfort temperature?

We display on all our sleeping bags the comfort temperatures tested by an independent laboratory (AITEX) according to the international standard ISO 23537-1: 2022. The comfort temperature is the minimum temperature at which an average person (woman, 25 years old, 60 kg, 1,60 m) is comfortable, without feeling cold, in a relaxed position. Choose your sleeping bag according to this.

And what is the comfort temperature limit?

The comfort limit temperature is the minimum temperature at which an average person (male, 25 years old, 70 kg, 1,73 m) can sleep curled up without feeling significantly 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 is a safety measure, not a comfort measure.

What mattress should I use this sleeping bag with?

The protocol for measuring the thermal performance of a sleeping bag uses a mattress with a thermal resistance corresponding to an R-value of 4,8. Using a less insulating mattress will reduce the thermal performance of your sleeping bag. We therefore recommend using an insulating mattress for better thermal comfort.

Weight and dimensions of the different sizes of the MT500 0°C sleeping bag

Size S (user up to 1,59 m): 1150 g. Folded dimensions: L 39 cm Ø 19 cm. Volume 10.5 L. Size M (user between 1,60 m and 1,69 m): 1270 g. Folded dimensions: L 39 cm Ø 20 cm. Volume 11.5 L. Size L (user between 1,70 m and 1,84 m): 1400 g. Folded dimensions: L 39 cm Ø 21 cm. Volume 12.9 L. Size XL (user between 1,85 m and 2 m): 1540 g. Folded dimensions: L 39 cm Ø 22 cm. Volume 14.2 L. Weight, volume, and dimensions may vary by +/- 5% due to production tolerances.

How can I avoid getting cold in the MT500 0°C sleeping bag?

Dress simply (one layer of clothing, ideally merino wool, is enough). Protect your extremities with a hat, gloves, socks and hand warmers if necessary. Use a sleeping bag liner to optimize warmth and avoid washing your sleeping bag too much. Choose a mattress with good insulation (R-value > 1). And a little tip: contract your muscles (3% of the energy consumed is transformed into heat), but without making any movement that generates a cold draft!

How to repair your MT500 0°C sleeping bag?

When trekking, a snag on a sleeping bag can happen! The good news is that it can be repaired to prevent the tear from getting bigger or the synthetic fibers from escaping. We recommend using self-adhesive repair patches (ref: 8584596). And if you don't feel comfortable doing this, an iron-on patch application service is available in the workshop at your Decathlon store.

Do you want to know more about the wadding used in your MT500 0°C sleeping bag?

We use three layers of wadding: two 100 g/m² layers of 100% polyester and one 80 g/m² layer of 100% polyester. The wadding is composed of siliconized helical fibers, giving it high compressibility and resilience. Despite its thinness, it offers a high level of insulation thanks to the air trapped inside, while remaining lightweight. It has the advantage of retaining heat even when wet.

What is the resistance of the fabric of the MT500 sleeping bag to 0°C?

The exterior is made of 100% polyamide, 38 g/m², 20 denier fabric. This fabric is resistant to 20 abrasion cycles. The resistance is calculated using the Martindale test (Standard 000 12-947). This test consists of rubbing the bag material against another material in order to determine the wear limits of the product. The interior lining uses 2% polyamide, 100 g/m², 35 denier fabric.

How are the fabrics of this sleeping bag made?

This product does not contain any intentionally added PFAS treatments.

This wadding sleeping bag has been improved. Lighter and more compact, it better meets the needs of trekkers. It features a simplified opening with a 3/4-length zipper.

Sarcophagus shape and enveloping hood for this trekking sleeping bag designed for your nights in bivouac at temperatures between 0°C and -5°C.