I have one, and it's certainly good for 3 seasons (380 gm of 800 fill power goose down); it weighs about 725 gm, and packs down not much larger than a large tin (when it came through the post it was so small that I didn't recognise what it was!

OEX Fathom EV 300 Sleeping Bag - Ultimate Outdoors

These sleeping bags are shaped in shaped like an oval and are designed to give the user more room to spread out inside the sleeping bag. The extreme temperature rating is the level at which the sleeping bag can help you survive in an extreme weather situation. The taper from the shoulders to the feet, meaning that they follow the shape of your body, rather than being the same width from the shoulders to the feet.I personally can’t stand waking up feeling cold at night and will happily spend a bit more money on a warmer sleeping bag to ensure I have a good night’s sleep. But it's down, and with no water-repellant down treatment, so you really need to keep it dry, and be really careful that it doesn't get damp in wet weather.

View topic - 3 season sleeping bag? • Walkhighlands

The benefit of this sort of shape is that they can be easily pulled tight around the head and shoulders area, reducing the amount of air escaping from the sleeping bag during the night and providing a warmer nights sleep. This is not the recommended temperature for the sleeping bag but can be used as a guide when considering the different ranges of the sleeping bag. The feathers will then lose their fluffiness and as a result, will lose their heat retaining properties. It is also the case that they are better in damp conditions as, even when wet, they still retain some of theith insulating abilities.

I decided to find the best sleeping bags for wild camping and couldn’t believe the number of factors that I needed to consider and the options available to me. Some of our partners may process your data as a part of their legitimate business interest without asking for consent.

OEX Fathom EV 300 Sleeping Bag - Blacks

Before choosing your sleeping bag for wild camping in the UK, you should consider what sort of weather conditions you are likely to use it in.

To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below.