Therm-a-Rest Hyperion 20F/-6C Long


free uk deliveryNext working day UK* delivery

Weighing in at 630g, this Therm-a-Rest Hyperion 20F/-6C Sleeping Bag is one of the lightest most compact sleeping bags which provides peak performance in its class thanks to its Nikwax Hydrophobic Down insulation, lightweight materials and precision design ideal for uncompromising adventurers that need a warmer bag!

This is the LONG size of the Therm-a-Rest Hyperion and is suitable for people up to 6' 5", it also offers extra width too while remaining compact and lightweight making it perfect for you if you are taller or want extra space when you sleep.

The insulation used on this Therm-a-Rest Hyperion Sleeping Bag is a 900-fill Nikwax Hydrophobic Down which stays drier and maintains loft a whopping 60 times longer than untreated down, it also absorbs 90% less water and dries 3 times faster.

This has been cleverly positioned thanks to Therm-a-Rest's zoned insulation technology and by a boxed baffled construction to maximise warmth and save weight, placing 70% of the fill on the top and sides with only 30% on the back.

This sleeping bag can be integrated with Therm-a-Rest sleeping mats using their SynergyLink Connectors so you can personalise your sleep system for optimal efficiency and comfort for your chosen adventure making it an incredibly versatile cold weather sleeping bag.

We are pleased to announce that this Therm-a-Rest Hyperion 20 has won the coveted Backpacker Magazine 2019 Editor's Choice Award!

  • 10D Nylon RipStop w/ DWR outer fabric
  • 10D Nylon RipStop lining
  • 900 Fill Goose Nikwax Hydrophobic Down RDS filing (400g fill weight)
  • Zoned insulation
  • Box baffled construction
  • Cinchable hood
  • Heat trapping draft collar
  • Snag free zipper with draft tube
  • SynergyLink connectors to integrate with Thermarest mat
  • Storage sack and compression stuff sack included
  • Temperature comfort/limit: 0/-6°C
  • Fits up to 198cm (long)
  • Length: 216 cm
  • Girth: 147 (shoulder) x 130 (hips) x 117 (footbox) cm
  • Pack size: 15 x 20cm
  • Weight: 630g
  • Therm-a-Rest Hyperion 20F/-6C Long

Delivery Charges

Just £1.95 next working day UK delivery - Free on orders over £50

Delivery Times Explained

In Stock 2 day deliveryNext working day delivery - stock is available from our warehouse and will normally be despatched the same day if you order by 3pm.

All items are sent on a next working day service (large/expensive items DPD Monday-Friday, smaller items Royal Mail Monday-Saturday). If you require Saturday delivery on larger/more expensive items (over about £50) there will be an additional charge, please give us a call for a quote.
Northern Ireland, Highlands and Islands will take 2 working days.

On OrderOn order - Please call to check availability

Delivery Method

Small items may be sent by Royal Mail 24h, larger or more expensive items with DPD Next Day may require a signature on delivery. In the event that no one is available, the parcel will be taken to your local depot and a note will be left with instructions for redelivery.

Detailed delivery information and international rates

Our Guarantee

Our "no quibbles" guarantee means that if for any reason you are unhappy with the item you have purchased just return it in its original condition within 28 days and we will issue a full refund or exchange.

Christmas Returns

Items purchased between 1st November and 25th December can be returned anytime until the 31st January 2021 as part of our extended Christmas guarantee! Normal terms and conditions apply

FAQs and more information on returns and exchanges

Therm-a-Rest Hyperion 20 UL Long Deep Therm-a-Rest Hyperion 20 UL Long Deep Therm-a-Rest Hyperion 20 UL Long Deep Therm-a-Rest Hyperion 20 UL Long Deep

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Our Code: 524285

Supplier Code: 10724

Just £1.95 UK Delivery - Free over £50
Size Colour Stock
One Size Deep Pacific 1 in stock(1 in stock)
Order before 3pm for next working day delivery.
4.9 98% positive
  • Great service
    June 9, 2021
  • Amazing couldn’t believe how quickly they arrived, less than 24 hrs after order placed. Great for the garden, hard wearing and waterproof would highly recommend ⭐️⭐️⭐️⭐️⭐️
    June 9, 2021
  • all good and prompt
    June 8, 2021
  • Excellent service on the phone. Package arrived within 4 days of order with regular updates of progress. Would highly recommend.
    June 7, 2021
  • Excellent service and very quick
    June 7, 2021
  • Great service, well recommended
    June 7, 2021
  • June 7, 2021
  • Good price, fantastic, quick delivery and sensible delivery charge. Very impressed.
    June 7, 2021
  • First time I’ve used Outdoor Gear. I sent a couple of emails regarding my order and received prompt, helpful replies with them all.
    June 6, 2021
  • Easy to order received next day great.
    June 6, 2021

3,230 reviews since June 2017

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£1.95 Next working day UK* delivery - Free on orders over £50 - Order before 3pm - (*2 working days for Highlands, Islands and Northern Ireland)