Saros 0 Synthetic Sleeping Bag

SKU:
SS20535
Insulation Type:
Synthetic
Weighs:
2232g (based on size Regular)
Comfort Limit:
-18°C
Zip Length:
3/4 Length
Zip Position:
Left Zip

Thermarest's top-rated Saros Synthetic sleeping bag offers a warm, lightweight and fully-featured sleeping bag for cold weather comfort while camping and backpacking. Thermarest says: When the weather gets frigid and th…

£199.99
Adding to cart… The item has been added
Product Details

Jump to: Our Verdict / Features / Specifications

Thermarest's top-rated Saros Synthetic sleeping bag offers a warm, lightweight and fully-featured sleeping bag for cold weather comfort while camping and backpacking.

Thermarest says:

When the weather gets frigid and the forecast looks damp, the Saros 0F/-18C is equipped to keep you resting better. The Saros uses our eraLoft™ synthetic insulation, which is quick-drying and weather resistant, making it ideal for backpacking and mountaineering in wet weather from spring to fall. The fit of the bag has been perfected in our onsite cold chamber to create our W.A.R.M. fit that allows room for multiple sleep positions without compromising thermal efficiency. Our SynergyLink™ Connectors also integrate the Saros with your pad to ensure superior comfort with efficient warmth and the freedom to move as you like for the best night's rest possible. The Saros is offered in three sizes and designed to fit both men and women. Compression sack and storage sack included.

Our Verdict

Therm-a-Rest's Saros range is designed to provide a rival the Questar down bag. If you prefer a synthetic bag that stays drier for longer and doesn't lose the ability to stay warm when wet then this is a great bag. In recent years advances in synthetic insulation have made it much lighter weight and smaller in terms of pack size. It is still heavier and larger when packed than a down bag but the benefits of synthetic can be worth it. This bag has an impressive Comfort Limit of -18°C so it is ideally suited to winter conditions across the UK.

The bag has been built with eroLoft insulation to keep you warm and dry during fast and light adventures. It's filled with a 65-35 distribution, placing more fill on the top and less on the bottom where the fill gets compressed. This saves weight and gives you a smaller pack size. The synthetic fibres repel water to keep you dry in damp conditions. Important in case you do get caught out.

It has all the usual features you'd expect from a quality sleeping bag including a draft collar, full-length zipper draft tube, snag-free zipper, cinchable hood and external zip pocket. There is also an extra foot pocket inside to provide a bit more comfort and warmth, particularly for anyone with cold toes. In addition to these there are also sleeping mat connectors on the back of the bag and loops on the front so you can add a quilt, both building on the versatility of the Thermarest sleep system concept. If you pair the bag with an insulated mat you will get a warmer bag for less weight.

- Reviewed by Ultralight Outdoor Gear

Features

  • eraLoft™ Insulation: Efficient and compressible, our water-resistant synthetic fill uses hollow fibers to reduce weight without sacrificing warmth.
  • W.A.R.M. Fit: With Additional Room for Multiple positions (W.A.R.M.) fit means this bag allows for various natural sleep positions while maintaining thermal efficiency. 
  • SynergyLink™ Connectors: Integrate the bag with a pad for optimal comfort and thermal efficiency; removable for versatility.
  • Zoned Insulation: Maximizes warmth and saves weight by intentionally placing fill where you need it most. 
  • Toe-asis™ Foot Warmer Pocket: Ergonomic toe box that rapidly warms cold feet in a pocket of warm insulation. 
  • Quilt and Blanket Loops: Customize your sleep system by layering our quilts or tech blankets for increased warmth. 
  • Additional features: Heat-trapping draft collar, full-length zipper draft tube, snag-free zipper, cinchable hood and external zip pocket. 
  • Compression sack and storage sack included.

Specifications

Temperature Rating

  • EN13537:2012 Comfort: -10°C / 14°F
  • EN13537:2012 Comfort Limit: -18°C / 0°F

Regular

  • Weight: 2232g (excludes bags)
  • Fits: 183cm / 6ft
  • Shoulder girth: 160cm / 63in
  • Hip girth: 155cm / 61in
  • Footbox girth: 117cm / 46in
  • Fill weight: 1875g
  • Packed dimensions: 28 x 30cm / 11 x 12in

Materials

  • Shell: 20D Polyester RipStop w/ DWR
  • Lining: 20D Polyester Taffeta
  • Insulation: eraLoft™ Polyester Hollow Fiber

Help and advice:

Thermarest Saros 0 Synthetic Sleeping Bag

Saros 0 Synthetic Sleeping Bag

£199.99
Choose Options
Choose Options
WE WEIGH EVERYTHING
WE WEIGH EVERYTHING

Accurate weights of items are vital to us here at Ultralight. We want you to be confident in making decisions on which gear to buy if you’re a gram-counter like us.

Shop by weight
Customers Also Viewed
Thermarest Corus 32 Down Quilt Thermarest Corus 32 Down Quilt

Thermarest

Corus 32 Down Quilt

Weighs
588g (based on size Regular)
Down Treatment:
Hydrophobic
Fill Power:
650
Insulation Type:
Down
Zip Length:
No Zip
Weighs:
588g (based on size Regular)
Comfort Limit:
0°C

Lightweight, comfortable and warm top-rated camp quilt that is extremely packable for your camping and backpacking adventures. The Corus provides the perfect blend of functionality and warmth. ...

From: £174.99
RRP: £199.99 | Save: £25.00
Thermarest Corus 20 Down Quilt Thermarest Corus 20 Down Quilt

Thermarest

Corus 20 Down Quilt

Weighs
772g (based on size Regular)
Down Treatment:
Hydrophobic
Fill Power:
650
Insulation Type:
Down
Zip Length:
No Zip
Weighs:
772g (based on size Regular)
Comfort Limit:
-6°C

Lightweight, comfortable and super warm. The Corus is a top-rated camp quilt that is extremely packable for your camping and backpacking adventures. It provides the perfect blend of functionality and...

From: £189.99
RRP: £214.99 | Save: £25.00
Top Pick
OMM Halo Jacket OMM Halo Jacket

OMM

Halo Jacket

Weighs
106g (based on size Medium)
UOG Top Picks:
Yes
Shell Fabric:
Point Zero H2O
Weighs:
106g (based on size Medium)

UOG TOP PICK - OMM's Halo Jacket - The perfect foray into lightweight Waterproofs - We've singled out OMM's Halo Jacket as one of our top recommendations because it's very lightweight, offers decent...

£114.99
RRP: £124.99 | Save: £10.00
Top Pick
Mountain Equipment Ibex Mountain Pant Mountain Equipment Ibex Mountain Pant

Mountain Equipment

Ibex Mountain Pant

Weighs
434g (based on size Medium)
UOG Top Picks:
Yes
Softshell Filter:
No Insulation
Weighs:
434g (based on size Medium)

UOG TOP PICK - Mountain Equipment's Ibex Mountain Pant - We've singled out Mountain Equipment's Ibex Mountain Pants as one of our top recommendations because they have an excellent blend of stretch...

£72.99
RRP: £84.99 | Save: £12.00
Top Pick
Rab Borealis Jacket Rab Borealis Jacket

Rab

Borealis Jacket

Weighs
308g (based on size Medium)
UOG Top Picks:
Yes
Softshell Filter:
With Hood, No Insulation
Weighs:
308g (based on size Medium)

UOG TOP PICK - Rab Borealis Softshell Jacket - We've singled out Rab's Borealis Softshell Jacket as one of our top recommendations because it provides excellent value for money, coming in as the...

£74.99
RRP: £79.99 | Save: £5.00