Deuter Sphere 1050

This is a top quality synthetic sleeping bag using Polarguard Delta, which is why it is relatively light in weight as this is a very efficient insulator. It comes in a compression stuffsack. The bag has a good size zip that does not easily snag, and behind this there is a baffle. Get in the bag and the stretchy fleece panels inside improve comfort by allowing the bag to hug your body at the shoulders, which is an excellent feature as it improves warmth. There is also extra insulation in the foot, where most people need it. The shoulder baffle is quite wide and can be easily adjusted to trap air inside the bag. Pull the hood drawcords and you get a reasonably neat fit around the head. But the bag is only rated as -7 deg C, but the Leeds Uni test found it to be warmer at -11 deg C. The zip baffle is relatively small than most so you might find the zip area colder than other bags. Also, the bag felt more restrictive than others.


Size: 205x75x50cm
Shell: 260T nylon diamond ripstop
Inner: Deuter Soft-Micro
Construction: 3-layer shingle
Insulation: Polarguard Delta
Packed size: 23x45cm; 23x36cm compressed
Weight: 1742g bag; 1910g with stuffsack
Made in China
Stores: no info provided
Comfort ratings deg C:
Claimed -7
Tested -11

Verdict: Buy it if you want smaller or closer-fitting bag, or you are size small to medium in clothing terms.