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OEX Leviathan EV 900 Sleeping Bag

Member‘s Card Price£160.00

Retail Price £270.00 Was £179.99Save 41%

Offer: 20% Off Selected Brands - BRAND20

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A very warm, lightweight and protective 4-season down sleeping bag, packable to a compact size.

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Product code: 15903111 / 329252

A very warm, lightweight and protective 4-season down sleeping bag, packable to a compact size.

Small & light enough to carry on longer trips
Will keep you comfortable in hostile wintry weather
Hydrophobic fill keeps you warm even if damp

Very warm despite its low weight and bulk, the OEX Leviathan EV Hydrodown 900 Sleeping Bag is ideal for temperatures around -9°C, but will keep you comfortable down to -16°C.

The 900gsm / 600 fill power duck down insulation has a hydrophobic coating that makes it very practical for winter camping - it retains its loft if it gets damp, so it still keeps you warm in cold and clammy conditions.

The compression stuff sack lets you pack it down to a very compact and manageable size for packing and carrying.

  • Ultra comfort lining
  • Inner pocket
  • Internal wind/neck baffles
  • Anti-snag zipper band
  • Tested to EN13537

The Allied Down Feather in this sleeping bag meets the Responsible Down Standard (RDS): ETHICALLY PRODUCED - ENVIRONMENTALLY RESPONSIBLE - 100% SUSTAINABLE.

45 x 26cm
Backpacking, Expedition, Touring, Travel, Trekking, Weekend
4 Season
20D Nylon Shell and Lining
Compression Sack, Draught Collar, Foot Box, Hood, Insulation
220 x 78cm

This product qualifies for the following delivery methods

Standard Delivery (3-6 Days) (FREE)


Once despatched you will receive updates from the courier.

Reserve and Collect (within an hour) (FREE)


We will notify you when your order is ready to collect.

Click and Collect (3-6 Days) (FREE)


You will be notified when your order is ready to collect.

AM Delivery (£7.95)


Order by 8pm and get your item delivered to you by 12pm the next working day (Not available for NI, Channel Islands or Highlands)

Standard Large Delivery (3-5 Days) (FREE)


Standard Large Delivery (3-5 Days) (£200.00)


Express 2 Day Delivery (£5.95)


Express delivery takes 2 working days when order is placed before 1pm Monday-Friday. Once despatched you will receive updates from the courier.

Bike Delivery (£4.95)


Bike delivery is £4.95. This applies to all bikes, and these orders are upgraded to a DHL courier service.

British Forces Post Office (BFPO) (FREE)


Delivery before 10:30am (£8.95)


Saturday Delivery (order by 6pm Friday) (£5.95)


Click and Collect Next Day (order by 6pm Mon - Fri) (£2.95)



Returning orders to us is easy. Whatever your reason, we offer a refund or exchange within 28 days of delivery or collection.

Ratings & Reviews

Overall Rating

3.83 out of 5
23 reviews
Write a review
3.83 out of 5

An amazing bag, the...

An amazing bag, the first time I have used a down bag and it is soo warm. Used with a good mat the world is your oyster!! Looking forward to mid winter wild camps with this.

3.83 out of 5

Perfect great winter sleeping...

Perfect great winter sleeping bag.

3.83 out of 5

Not a bad bag

Had this bag down to -19 and -21c a few times. Paired with the usual things e.g. liner, thermals, 5 season tent and sufficient insulation from the ground, it was adequate.

Problems: Zip and down loss

3.83 out of 5

Great item

Great item

3.83 out of 5

Leviathan update

Further to my original review, I have since used this bag, with a liner to -1 temp and I was cold. The comfort rating falls way short of the claimed -9. This is certainly not a 4 season bag

3.83 out of 5

Not a -9 bag

Overall this is a decent bag for the money and if you remember that it is a budget bag you will be okay. My son used it on a wild camp, the forecast was for -1 and he said he was only just warm enough

3.83 out of 5

Comfort up to -16... more like dead at -16

Used april 12th.. the lowest the temperature went down to that night was -2 I was freezing. Shaking all night. I had thermal silk liner, five thermal layers, double skin thermal hat, hot water bottle

3.83 out of 5

Excellent sleeping bag! Perfect...

Excellent sleeping bag! Perfect price for a perfect bag

3.83 out of 5

Poor bag

Not a 4 season bag. I have slept out recently in temperatures of just below freezing with a sea to summit mat with high R value. The bag was cold, I was cold. More of a spring summer bag.

3.83 out of 5


Not happy with the amount of down coming out they should supply a Hoover with this bag

3.83 out of 5

Brilliant sleeping bag

Used this oex 900 in -3 this weekend and it was brilliant, one or two feathers seem to make there way out of the bag, but I will be keeping a eye on this,

3.83 out of 5

Nice warm lightweight bag

Great bag for the money. I've now slept 9 nights in this bag and has kept me nice and warm. Not sure if it's because it's still new, but it does shed a few feathers. Would buy it again!

3.83 out of 5

Super warm & as snug as a bug in this rug! ; )

This is a fantastic sleeping bag, I have used this bag in temperatures down to -4 Degrees Celsius, and I stayed warm and toasty throughout the night. Very impressed. : )

3.83 out of 5

Warm as anything

First down sleeping bag I’ve had but obviously the best such an upgrade on old synthetics. Storage bag is fab love this bag so much

3.83 out of 5

Excellent sleeping bag

Toasty warm for 2 trips to Nepal down to -15 when used with a silk liner. Stuff sack is only let down, stitching broke when compressing. Other than that, its a bargain for the performance!

3.83 out of 5

Excellent bag.

Just used for the first time. Temperature got down to about 7 degrees at night, and I found I had to remove some layers and put my feet out at the bottom as it was that warm. Be great in winter.

3.83 out of 5

Safe Bet

Third time out with this bag and each time -3 or below. Not felt cold in it so far. Gives me confidence which is what you need when getting up on them fells.

3.83 out of 5

Good quality, Bargain price.

Bought this for late Autumn/early Winter camping last year and combined with a good mat found it very warm and cozy. I haven't used it backpacking yet but I think I would. Doesn't shed feathers .

3.83 out of 5

Love it

I have had this bag for a few years now i bought it at full price. I love it. So easy to pack away light weight. I struggle to find a bag that will keep me warmbut this definitely does the trick.

3.83 out of 5

Loses a lot of feathers

Unimpressed, son brought for ten tors. Feather leakage, (caused irritation and wheezing), not before had a problem with down bag. Customer services said this was usual with down products! Warm bag


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