There’s literally nothing more miserable than waking up after a long day’s running to find yourself shivering in your tent because your new sleeping bag isn’t up to doing the job required of it. Fortunately for buyers of the Mountain Raid 1.6 by OMM, this particularly grim scenario is never really on the cards.

Like everything designed by OMM, this is designed for use on the Original Mountain Marathon (the events that the brand is named for) and so is super lightweight. However just because it’s easy to carry and packs down small doesn’t mean it can’t pack a punch when it comes to warmth. Although you might want something bulkier if you were snow-camping in the Siberian winter, this is more than enough to handle summer - and even autumn - temperatures in the UK.

“Just because it’s easy to carry and packs down small doesn’t mean it can’t pack a punch when it comes to warmth."

The synthetic insulation on this thing is PrimaLoft Gold; which has one of the best warmth-to-weight ratios on the market. Each panel’s weight of fill has been carefully considered by the design team, resulting in a technically superb and well thought-out sleeping bag that maximises warmth in the places where it’s needed most.  

Insulation in the Mountain Raid’s base sheet is 60g, while the topsheet and footbox contain a toasty 100g; making chilly feet a thing of the past. The construction of the bag maximises insulative value and eliminates cold spots with a loose laid outer shell and an inner that’s stitched through to the insulation.

The fabric has had DWR (durable water repellent) treatment, meaning users have additional protection from moisture. This treatment means the Mountain Raid 1.6 also has extra stain resistance. Useful if you’re clumping around your tent in muddy trail running gear.


Features, worthy of note, include the hood drawcord (for when you want to go full-on caterpillar in a cocoon), the half-length YKK zip (reducing escape routes for warmth), and the hang loops at the bag’s base. We also liked the bag’s fast drying, easy-to-care-for, construction.

This might look like a minimalist sleeping bag, but don’t let its looks fool you. Yes the OMM’s designers have stripped away everything unnecessary to keep the weight down, but this is incredibly comfortable and more than warm enough for summer adventures. Less, in the case of the OMM Mountain Raid 1.6 sleeping bag, is definitely more.

OMM Mountain Raid 1.6 Sleeping Bag