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Ray Mears 4-Season Down Sleeping Bag - Grizzly Bear

Ray Mears Bushcraft

Ray Mears 4-Season Down Sleeping Bag - Grizzly Bear


Weight: 1535 g         2 reviews
The Ray Mears 4-Season Down Sleeping Bag - Grizzly Bear is a luxurious sleeping bag, designed exclusively by Ray Mears for Woodlore. The Bear Range of down sleeping bags have been in development over a number of years, having been tested by Ray and the Woodlore Team all over the world to ensure a supreme product for our customers.

The Grizzly Bear is predominantly designed to be used during late autumn through to early spring within the UK. However, it is also suitable for use in colder regions, proving itself in laboratory tests to provide safe insulation at temperatures as low as -30°C. The outer fabric also benefits from 10,000mm of water resistance and 10,000g/m2/24h of breathability.

The Grizzly Bear is manufactured using the highest quality materials, including ethically collected goose down, giving a fill power of 880 cuin. With the impressive capability to compress in to a dry bag of just 25 litres and with a weight of 1.535kg this bag is ideal for expedition travelling. Due to the nature of the down filling inside these sleeping bags you need to ensure that the sleeping bag is not left compressed for extended periods of time as it will decrease the fill power over time. As such each bag is supplied with its own large storage bag and an Ortlieb Dry Bag for use when out on trips.

All of our down sleeping bags utilise a central-zip design, featuring a useful protective flap at the top to ensure that your face does not come directly in to contact with the zip. The central-zip is a simple feature which makes a huge difference in the field. Originally found in military sleeping bags, it makes getting in and out of the bag far easier than traditional side-zip designs. More importantly, it allows the user to comfortably sit upright while still keeping their lower body inside the bag, making it possible to change clothes in stages from within the warmth and comfort of your bag. As any cold-weather camper will attest, this is a very welcome feature when the temperature drops!

The Grizzly Bear is made in a tapered 'mummy' shape, keeping unused dead space to a minimum, while avoiding the restrictive feeling so often associated with this style of sleeping bag. At the head is a roomy, full-size hood with internal drawstrings, allowing you to create as snug a fit as you desire. A baffle with a drawstring runs horizontally across the inside of the hood with hidden Velcro fastening tabs, providing extra support and insulation around your neck. A second internal baffle runs down the full-length of the central-zip, ensuring that your body does not come into direct contact with the zip while also keeping out any draughts. An additional feature is the inclusion of two inner pockets, placed either side of the central zip on the chest area. These Velcro fastened pockets are ideal for keeping your valuables hidden and protected.

  • Performance rating: 4 Season
  • Filling: Goose Down
  • Fill power: 880 cuin
  • Fill weight: 950 g
  • Extra filling in foot area
  • Comfort temperature: -10°C
  • Minimum comfort temperature: -20°C
  • Weight: 1.535 kg
  • Internal length: 215 cm
  • Length from top of zip to feet: 198 cm
  • Length of zip opening: 124 cm
  • Internal width at shoulders: 95 cm
  • Internal width at feet: 50 cm
  • Packed size in storage bag: 85 x 45 x 45 cm approx.
  • Compressed size in dry bag: 43 x 24 x 24 cm approx.
  • Compressed volume: 25L approx.
  • Two internal pockets
  • Central YKK zip with full-length baffle
  • Zip can be accessed from both inside and out
  • Adjustable, full-size hood
  • 35L Ortlieb Dry Bag included
  • Storage bag included
  • Designed by Ray Mears
  • Made in Poland
  • Colour: Black

Out of Stock

This item is very popular and is currently out of stock. To be notified by e-mail as soon as it comes back in to stock, please sign up for a restocking notification below.


  Next day delivery within the United Kingdom
  UK Orders placed before 2PM GMT will be dispatched the same working day
  Overseas delivery times will vary depending on the destination

Please note that our offices are closed at weekends, so any orders placed after 2PM GMT on a Friday will not be dispatched until the following Monday.

Please note that in some instances, orders for heavy items may take an extra day to arrive.

  Overseas deliveries
For overseas deliveries, please refer to the following estimated delivery times:

  • Europe: 3 - 5 working days
  • Rest of the world: 5 - 7 working days


A full refund or exchange will be given provided that the items have not been worn or used, and are returned to us within 30 days of purchase, together with all relative labels and packaging. You are responsible for the cost of returning items.

Please ensure that you include a copy of your invoice, along with an explanation of why you have returned your goods. If you wish to return your goods for any reason, please do so to the following address:

Woodlore Limited
PO Box 3
East Sussex
TN19 7ZE
United Kingdom

Product Reviews

Ray Mears 4-Season Down Sleeping Bag - Grizzly Bear is rated 5/5 based on 2 customer reviews.

All of our product reviews are from customers with verified purchases.

Overall Rating:


  1 of 2

  What an amazing sleeping bag. Oozes quality. It is far larger than I was expecting when not compressed, at least 3 times the size of my previous 4 season down sleeping bag, but does compress down to 25l in its waterproof bag. Well designed with the central zip.  

  David Howells
17th February, 2020

Rated: 5/5

  2 of 2

  Too warm to use at present but you can see it's well made and it's great to have a center zip.  

  Sean B Kelly
26th June, 2019

Rated: 5/5

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Frequently Asked Questions

Answers to frequently asked questions on this item can be found here. If you have a question about this product, please contact us.

Is this sleeping bag the same dimensions as a standard sleeping bag?

The Bear Range of bags have been specifically designed to be longer and wider than a standard sleeping bag to ensure plenty of room and reduce any restrictions.

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