Vango Cobra sleeping bag review

The Vango Cobra sleeping bag is designed to provide ample cosiness in a compact package. Here's our review

Vango Cobra 600 sleeping bag on some grass next to a tent
(Image credit: Future)
T3 Verdict

The Vango Cobra – available in 2, 3, or 4 season versions – is excellent at keeping in your body heat. Things can get clammy on mild nights, but in colder weather this bag would be an excellent choice. Extra features, including a very well designed zipper, help elevate it from the competition.

Reasons to buy
  • +

    Traps body heat very effectively

  • +

    Clever, no-snag zip

  • +

    Phone pocket

Reasons to avoid
  • -

    Heat reflecting properties a bit clammy on warm nights

  • -

    Only one size for each weight

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The Vango Cobra 600 sleeping bag is pitched as an "extremely lightweight" down sleeping bag, designed to deliver overnight cosiness when space and weight are at a premium in your hiking backpack. It's available in three different versions: the Cobra 200 (two-season, RRP £160), the Cobra 400 (three-season, RRP £22) and the Cobra 600 (four-season, RRP £260). I tried the 600 version, which in theory will see you right on adventures all year round, but the features and design are similar across all three models. 

So how does this bag compare to the rest of the products in our best lightweight sleeping bag guide? I've been testing one out to see. Read on for my full Vango Cobra  sleeping bag review.

Vango Cobra 600 sleeping bag: design and features

Vango Cobra 600 specs

Weight: 1.1kg
Fill: 90/10 700 Fill Power Goose Down
Temperature: -5°C (Limit), -30°C (Extreme)
Max user height: 190cm (6ft 2)
Shape: mummy

The Vango Cobra 600 is stuffed with 700 fill power, ethically sourced goose down, that's arranged into box-shaped baffle channels that are designed to offer even distribution of filling, maximum loft and minimum heat loss via the seams. Vango says its "distinctively shaped", but it looks an awful lot like a classic mummy to me. The head section can be drawstringed closed around the face, and there's an insulated flap around the shoulders, which again can be tightened or loosened.

A durable 20D 380T Nylon Outer Shell has an aluminimised layer that's designed to radiate your body heat inwards. In a battle of down vs synthetic sleeping bags, the main downside of the former is that it really doesn't get on well with water, and to ensure an unexpected downpour or tent leak doesn't ruin your investment, Vango has used water-resistant nylon on the shell, and given the down a hydrophobic treatment for good measure. 

While some lightweight sleeping bag makes will opt for a shorter zip in favour of the weight saving, Vango's Cobras all have full-length two-way zips, with a padded flap to keep the heat in, piping on the inside to prevent snagging, and a chunky plastic casing on the pull section. There's also a velcroed pocket for your phone or keys (this is extremely well disguised, so you might not spot it at first). 

Vango Cobra 600 sleeping bag on some grass next to a tent

(Image credit: Future)

It packs into a supplied compression sack with four straps that can be tightened to get it as small as possible, and Vango has also included a mesh storage sack that's a lot roomier, to allow the down to loft when not out on expeditions. 

Usually, there's not a men's and women's version for any of the Cobra sleeping bags, nor long or short options. They all fit up to 190cm, which is around 6ft 2. Good news if you're around that height, but potentially annoying if you're 5ft 3 and don't want to tote around a whole load of unnecessary bag – this is being sold as a lightweight option, after all. 

Vango Cobra 600 sleeping bag on some grass next to a tent

(Image credit: Future)

Vango Cobra 600 sleeping bag: comfort

This is a four-season option, but Vango recommends it for use between -12°C and 15°C. I tested it out on a fairly mild May night, and it was certainly very cosy. The aluminimised layer was extremely effective at radiating my own body heat back to me – in fact, things got a little clammy, especially when combined with the slippery feel of the inside of the bag. While it wasn't hugely comfortable during my warm-weather tests, I think it'd really come into its own on a cold night when you actually want your own body heat preserved. 

The hood is shaped to fit snugly around your head, and is fairly standard, although Vango has made one of the drawcords orange, with the idea that you can differentiate which one to pull to adjust the upper or lower sections. 

One area where some extra effort has clearly been put in is around the zip. There's internal piping and a chunky plastic cover that make it all-but impossible to snag the inside of your bag, alongside your standard baffle flap to stop heat escaping. It's a welcome set of design tweaks that work very effectively in practice.

Vango Cobra 600 sleeping bag on some grass next to a tent

(Image credit: Future)

Vango Cobra sleeping bag review: verdict

The Vango Cobra is an excellent sleeping bag. The 600 version I tried delivered oodles of warmth for a relatively low weight and bag size. You'll be grateful for the aluminised inner when temperatures drop, as it does an excellent job of radiating your body heat inwards to keep things toasty (although I'd steer clear on milder nights, as that combined with the slippery inside fabric can mean things start to feel clammy quite quickly). Vango's redesigned zip system deserves a special shoutout too, making it almost impossible to snag the inside of your bag when closing. Thoughtful additions such as colour-coded drawstrings, a spare mesh bag for at-home-storage and a hidden phone pocket all add up to a compelling package. 

Ruth Hamilton

Ruth is a lifestyle journalist specialising in sleep and wellbeing. She has tested more mattresses than her small flat can handle and will talk at length about them to anyone who shows even a passing interest, and has had to implement a one-in-one-out pillow policy for fear of getting smothered in the night. As well as following all the industry trends and advancements in the mattress and bedding world, she regularly speaks to certified experts to delve into the science behind a great night's sleep, and offer you advice to help you get there. She's currently Sleep Editor on Tom's Guide and TechRadar, and prior to that ran the Outdoors and Wellness channels on T3 (now covered by Matt Kollat and Beth Girdler-Maslen respectively).