Nirvana 100 Sleeping Bag

Temp. Guide

​​Comfort: ​+5°C (41°F)
Limit: ​-5°C (23°F)

Carry Weight

​​​930 g​ (2 lbs)


$130.99 CAD

Synthetic ultralight sleeping bags do not have to cost hundreds of dollars or be uncomfortable. The new Nirvana sleeping bags use lightweight fabrics, micro fibre insulation, and have a generous cut mummy shape. You won’t believe the size and weight!

Out of stock

Shape: RectangularCritical Layer Construction
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  • Generous mummy shape for warmth and thermal efficiency
  • 20D micro ripstop polyester outer and inner fabrics
  • Insulated sculpted hood provides secure fit and more warmth
  • Boxed foot construction that allows for a natural foot position that does not compress the insulation
  • Drawcord at shoulder – use it to trap heat in and keep the cold out
  • Nirvana 200 & 300 models have insulated neck yolk to help trap heat
  • 2-way nylon coil zipper allows for venting; reversible slider with hi visibility fabric
  • Anti-snag zipper tape, and oversize insulated draft tube behind zipper
  • 4 fabric loops allow for attached cords to hold sleeping pad in place
  • Ultralight stuff bag
  • A few words on temperature ratings…
  • Hotcore Sleeping Bag Owner’s Manual and Warranty Information





Mummy shape with sculpted hood and boxed foot


200 cm long (6’ 6”)


84cm wide (33″) at shoulders
30cm wide (12″) at the foot

Carry Weight

930 g (2 lbs)

Carry Size

134 x 17 cm (3.5” x 6.7”)

Temperature Guide

Comfort: ​+5°C (41°F)
Limit: ​-5°C (23°F)
A few words on temperature ratings…


Trueloft microfiber; 0.7 Denier, siliconized; Critical Layer Construction

Outer Fabric

20D micro ripstop polyester
Colour: Mountain Grey

Inner Fabric

20D micro ripstop polyester
Colour: Lava


#5 2 way; nylon coil self healing zipper; half length
High visibility fabric zipper pull

* all measures approximate

Critical Layer Construction
We use thermal body-mapping construction to place the insulation where it will do the most good. You already have an insulating sleeping mat below you, and most of the sleeping bag insulation that is below will be compressed by your body weight, making it inefficient. We move much of this insulation to the top of our sleeping bags where it will trap warmth from your body.

Then we add an extra layer of TrueLoft™ insulation in the core body area, from the neckline to below the beltline, to help achieve and maintain the temperature ratings. This extra layer of insulation will trap more warmth from the body than comparable sleeping bags, while adding very little to the weight, size, and cost of the sleeping bag. Think of it as putting on a jacket, the first thing we all do when we need to stay warm.

We call this Critical Layer Construction.

High quality TrueLoft™ micro fibre synthetic insulation traps more warm air between its fibers than traditional insulations with the same loft. This gives you a warm, soft sleeping bag in a compact and lightweight size.

  • Lightweight – some of the lightest weight insulation available
  • Compressible – siliconized fibres slide easily allowing for greater loft, compressibility, and softness
  • Breathable – insulation and fabrics breathe to allow heat-robbing moisture & humidity to escape
  • Extremely quick drying – hydrophobic qualities allow TrueLoft™ to absorb less water and dry quickly
  • Warm when wet – while drying, TrueLoft™ still keeps you warm, performing better than inferior insulations