The Mont Temperature Rating System is based on over 40 years of experience in the design, manufacture and use of sleeping bags in the wild. Any adventure, any weather, there is a Mont sleeping bag designed for, used in, and proven in that situation.
On a Mont sleeping bag two temperatures are given, a cold sleeper rating and a warm sleeper rating.
The cold sleepers rating suggests that an average cold sleeper will be comfortable at or around that temperature.
The warm sleeper rating suggests that an average warm sleeper will be comfortable at or around that temperature.
The Mont Temperature Rating System does not specify an Extreme Temperature. The Extreme rating found on some sleeping bags is a survival rating only and cannot be relied on for general use: you will be cold, you will be uncomfortable, you will probably not sleep, and there is a risk of injury. If there is a chance that you will see temperatures at or near the Extreme rating of your sleeping bag, that sleeping bag is not warm enough for that situation.
Designed purely for attempts on the World's great peaks.
Made with a larger 'expedition fit' to allow the wearing of down clothing as required, available in Small/Medium (S/M) & Medium/Large (M/L) sizes.
| Model Name | Weight* | Season | Use | Cold Sleepers | Warm Sleepers |
|---|---|---|---|---|---|
| Expedition XT 8000 | 2130g (M/L) | 4 Season | Expedition | -30ºC / -22ºF | -40ºC / -40ºF |
Uncompromising sleeping bags designed for alpine & extreme cold conditions: Backcountry camping, polar expeditions & high altitude mountaineering.
Available in Standard, Women's & Extra-Large Sizes. Spindrift 700 available in Standard & XL only.
| Model Name | Weight* | Season | Use | Cold Sleepers | Warm Sleepers |
|---|---|---|---|---|---|
| Spindrift XT 700 | 1265g | 4 Season | Alpine | -7ºC / 19ºF | -13ºC / 9ºF |
| Spindrift XT 850 | 1430g | 4 Season | Alpine | -13ºC / 9ºF | -19ºC / -2ºF |
| Spindrift XT 1000 | 1630g | 4 Season | Alpine & Expedition | -19ºC / -2ºF | -25ºC / -13ºF |
Versatile sleeping bags for cool to cold adventures both above & below the snow-line.
Available in Standard, Women's & Extra-Large Sizes.
| Model Name | Weight* | Season | Use | Cold Sleepers | Warm Sleepers |
|---|---|---|---|---|---|
| Brindabella XT 700 | 1330g | 4 Season | Bushwalking & Alpine | -6ºC / 21ºF | -12ºC / 10ºF |
| Brindabella XT 850 | 1485g | 4 Season | Bushwalking & Alpine | -10ºC / 14ºF | -16ºC / 3ºF |
Lightweight down sleeping bags for hiking, winter camping & bike packing.
Available in Standard, Women's & Extra-Large Sizes.
| Model Name | Weight* | Season | Use | Cold Sleepers | Warm Sleepers |
|---|---|---|---|---|---|
| Helium 300 | 680g | 3 Season | Bushwalking | 4ºC / 39ºF | -1ºC / 30ºF |
| Helium 450 | 830g | 3 Season | Bushwalking | -1ºC / 30ºF | -7ºC / 19ºF |
| Helium 600 | 1000g | 4 Season | Bushwalking & Sub-Alpine | -4ºC / 25ºF | -10ºC / 14ºF |
|
Helium 680 Boxfoot |
1100g | 4 Season | Bushwalking & Sub-Alpine | -6ºC / 21ºF | -12ºC / 10ºF |
Bunker down and stay warm in conditions well below what you would expect for sleeping bags of this price. Made with a 100% recycled Hydronaute XT-R Shell and a 100% recycled silk-touch Nylon lining.
Available in Standard, Women's & Extra-Large Sizes.
| Model Name | Weight* | Season | Use | Cold Sleepers | Warm Sleepers |
|---|---|---|---|---|---|
| Warmlite 550 | 1060g | 3 Season | Bushwalking | -1ºC / 30ºF | -7ºC / 19ºF |
| Warmlite 750 | 1270g | 3 Season | Bushwalking | -7ºC / 19ºF | -12ºC / 10ºF |
| Warmlite Boxfoot 750 | 1240g | 4 Season | Alpine | -9ºC / 16ºF | -14ºC / 7ºF |
Incredibly lightweight & ultra compact down sleeping bags.
Appropriate for users up to 188cm tall.
| Model Name | Weight | Season | Use | Cold Sleepers | Warm Sleepers |
|---|---|---|---|---|---|
| Zero UltraLight | 294g | 2 Season | Bushwalking | 13ºC / 55ºF | 7ºC / 45ºF |
| Zero SuperLight | 427g | 2-3 Season | Bushwalking | 8ºC / 46ºF | 2ºC / 36ºF |
Quality down sleeping bags designed for comfortable camping & bang for buck.
Available in Standard, Women's, Extra-Large & Extra-Extra-Large Sizes.
| Model Name | Weight* | Season | Use | Cold Sleepers | Warm Sleepers |
|---|---|---|---|---|---|
| Zodiac 350 | 920g | 2-3 Season | Travel & Bushwalking | 6ºC / 43ºF | 1ºC / 34ºF |
| Zodiac 500 | 1060g | 3 Season | Travel & Bushwalking | 2ºC / 36ºF | -4ºC / 25ºF |
| Zodiac 700 | 1300g | 4 Season | Bushwalking | -3ºC / 27ºF | -10ºC / 14ºF |
The Evolution Series are a high performance synthetic alternative to down sleeping bags. By using Shingle Baffle Construction, Mont’s Evolution provide greater warmth, less weight & smaller packed size than quilted synthetic sleeping bags.
Available in Standard & Extra Large sizes.
| Model Name | Weight* | Season | Use | Cold Sleepers | Warm Sleepers |
|---|---|---|---|---|---|
| Evo UltraLight | 785g | 2 Season | Travel & Bushwalking | 12ºC / 54ºF | 8ºC / 46ºF |
| Evo Light | 1320g | 3 Season | Travel & Bushwalking | 4ºC / 39ºF | -2ºC / 28ºF |
| Evo Super | 1610g | 3 Season | Travel & Bushwalking | 0ºC / 32ºF | -6ºC / 21ºF |
The stated range is an indication of the potential comfort range and minimum temperature that may be possible. This should be used only as a guide. Ratings can vary dramatically depending on whether you are a warm or cold sleeper.
Other factors that will determine your comfort in a sleeping bag are the type of sleeping mat used, whether you're wearing thermals, socks or headwear, your health, metabolism, age and fatigue, hydration levels and what you've eaten. Hydronaute XT shell will increase the warmth of a sleeping bag.
These temperature ratings assume you're using an appropriately insulated sleeping mat, you are well hydrated, well fed and dry.
We always suggest buying a sleeping bag with a temperature rating that will cover you a few degrees below the temperature you expect to face. It is much easier to cool down than it is to warm up.
* Weight refers to Standard size unless otherwise stated.
