The Nitrous is the perfect bag when every gram counts. It’s designed for use in summer or shoulder seasons, or can be paired with a Quest booster for year–round use. The mummy shape is generous, and filled with 800-850 loft Hydrophobic Down, it’s available in three temperature ratings (+2, -1 and -3°C ISO 23537.1 limit of comfort) and small, regular and large sizes. The lightweight downproof by construction 10 D Vapour Vent V2 fabric offers excellent breathability, durability and water repellence, while the full–length YKK #5 locking zip has an anti-snag slider and opens at both ends, allowing extra ventilation.
The Nitrous is the perfect bag when every gram counts. It’s designed for use in summer or shoulder seasons, or can be paired with a Quest booster for year–round use. The mummy shape is generous, and filled with 800-850 loft Hydrophobic Down, it’s available in three temperature ratings (+2, -1 and -3°C ISO 23537.1 limit of comfort) and small, regular and large sizes. The lightweight downproof by construction 10 D Vapour Vent V2 fabric offers excellent breathability, durability and water repellence, while the full–length YKK #5 locking zip has an anti-snag slider and opens at both ends, allowing extra ventilation.
in 2 offers
The lowest price for One Planet Nitrous -1 800+ DWR Sleeping Bag Large / LHZ right now is $609.00 at Vast Outdoors Australia.
The all-time low was $492.15 on 2 Mar 2026 — today's price is 24% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 12 May 2026.
One Planet Nitrous -1 800+ DWR Sleeping Bag Large / LHZ
The Nitrous is the perfect bag when every gram counts. It’s designed for use in summer or shoulder seasons, or can be paired with a Quest booster for year–round use. The mummy shape is generous, and filled with 800-850 loft Hydrophobic Down, it’s available in three temperature ratings (+2, -1 and -3°C ISO 23537.1 limit of comfort) and small, regular and large sizes. The lightweight downproof by construction 10 D Vapour Vent V2 fabric offers excellent breathability, durability and water repellence, while the full–length YKK #5 locking zip has an anti-snag slider and opens at both ends, allowing extra ventilation.
The Nitrous is the perfect bag when every gram counts. It’s designed for use in summer or shoulder seasons, or can be paired with a Quest booster for year–round use. The mummy shape is generous, and filled with 800-850 loft Hydrophobic Down, it’s available in three temperature ratings (+2, -1 and -3°C ISO 23537.1 limit of comfort) and small, regular and large sizes. The lightweight downproof by construction 10 D Vapour Vent V2 fabric offers excellent breathability, durability and water repellence, while the full–length YKK #5 locking zip has an anti-snag slider and opens at both ends, allowing extra ventilation.
Last updated at 12/05/2026 16:05:31
One Planet Nitrous -1 to -3 Down Sleeping Bag Series Nitrous -1° | 800+ Loft DWR / Large | Left Zip
Free delivery
One Planet Nitrous -1 to -3 Down Sleeping Bag Series Nitrous -3° | 800+ Loft DWR / Large | Left Zip
Free delivery
originally posted on dwights.co.nz
Used this for the first time on the Three Tarns Pass trip across the Spenser Mountains. A beautiful wee bag. We were in huts all night, but Downies Hut inland from Murchison was a cool night and the Hut old with plenty of gaps (Shame on DOC). I slept well but another 2 or 3 degrees down and I would have slept but been on the cool side. As a product this is a top bag. I suppose the best reference I can give it is that I am going to buy the next warmer model as well. Very light, very compact, very snuggly. I can only assume that these bags are pure down and not down/feather.
originally posted on dwights.co.nz
Really happy with my nitrous! I was reluctant to spend that much on a sleeping bag but went with it and have been super impressed! Took this sleeping bag while hiking the Haute Route in Switzerland where we were camping at high altitude and I did not feel the cold once!! This is coming from someone who feels the cold all the time!! It bags down so small too so was no issue fitting in my bag.
originally posted on dwights.co.nz
Love these sleeping bags, got one for each of the kids... I got the small which doesn't so you don't get to choose which side the zip is on but you do with the regular which is great as I purchased it for a left hander.The hood cord would be better on the outside and could be nice to have a cover for the internal zip but very minor - great bag and super light and small!
| Variant | |
| loft | 800+ |
| zip side | Left |
| size | Large |
One Planet Nitrous -1 to -3 Down Sleeping Bag Series Nitrous -1° | 800+ Loft DWR / Large | Left Zip
Free delivery
One Planet Nitrous -1 to -3 Down Sleeping Bag Series Nitrous -3° | 800+ Loft DWR / Large | Left Zip
Free delivery
Used this for the first time on the Three Tarns Pass trip across the Spenser Mountains. A beautiful wee bag. We were in huts all night, but Downies Hut inland from Murchison was a cool night and the Hut old with plenty of gaps (Shame on DOC). I slept well but another 2 or 3 degrees down and I would have slept but been on the cool side. As a product this is a top bag. I suppose the best reference I can give it is that I am going to buy the next warmer model as well. Very light, very compact, very snuggly. I can only assume that these bags are pure down and not down/feather.
Really happy with my nitrous! I was reluctant to spend that much on a sleeping bag but went with it and have been super impressed! Took this sleeping bag while hiking the Haute Route in Switzerland where we were camping at high altitude and I did not feel the cold once!! This is coming from someone who feels the cold all the time!! It bags down so small too so was no issue fitting in my bag.
Love these sleeping bags, got one for each of the kids... I got the small which doesn't so you don't get to choose which side the zip is on but you do with the regular which is great as I purchased it for a left hander.The hood cord would be better on the outside and could be nice to have a cover for the internal zip but very minor - great bag and super light and small!
I bought this bag after searching around for very small light weight bags without compromising too much in heat rating. The price to weight/size ratio on this bag is hard to beat.My main use will be bikepacking, with some light weight tramping thrown in, the bag is tiny when packed down, its smaller then my puffer jacket. It does appear to be made from very light materials so I would imagine it won't last forever but so far I haven't had any issues. Actual weight for mine (regular size) is 600g in its bag. Also the regular is fine for me (184cm tall).
Lightweight and compact sleeping bag. Has a compressed sack and normal bag sack included. Great price and comfort compare to other branded sleeping bags. I am 163cm and the small size fits me properly with nice room to move around inside. It is better than my old sleeping bag kthmndu odyssey 5c, 1.06kg. Will recommend.
I bought this sleeping bag only a few weeks ago and used it for the first time this weekend. I LOVE everything about this bag. The little glow tab on the zipper for easy location when you have to get up in the night. I have always rolled my sleeping bags as I turn over in the night and wake up in the morning in a tight cocoon spiral. This bag stayed flat all night. Great that I could order a small size and therefore have a bit less bulk and weight to carry and the extra room in the toe box is excellent. On top of that it is really warm and I removed a couple of layers during the night.
Tested it last night. 6c when I went to bed. Felt cold in this bag. Added second layer of merino and down jacket. Woke up cold at midnight, 3c. Stayed cold all night. 0c in the morning.This bag is probably fine for camping by the beach in summer but should not be rated -3c.
Fly camping for the night with my indicating dog in the scrub on the top of the range, was supposed to get 1mm rain but ended up with 5mm. The wind picked up and was blowing the rain under my fly. Camp mat decided to have a hole in it and went flat 3 times during the night. Only time i woke up was to the mat being flat. Had a puddle of water in the foot box of this bag in the morning, mat was soaked and flat. Was still nice and warm and had a pretty good sleep, definitely recommend this bag especially considering the weight and packability.
Just received this today (will update my review once I’ve tested it properly) and I’m very happy so far. I’m 177cm and 50kg and got the small. I was hesitant to go for a mummy-style bag because I’m a side or front sleeper and like to put a knee right up so hate being restricted but tested in the living room and, although it’s narrower at the foot box, it’s much wider in the waist area so I can get my knee right up far easier than in my old bag. It’s clearly very well made and feels super luxurious. The zip snags quite a bit but I think that’s expected with such fine fabric. One thing to note is that the ¾ hood is super lame and more like a bit of a head rest than a hood because it’s too small to actually cover your head (and mine isn’t big!). I would get the cocoon ... MoreJust received this today (will update my review once I’ve tested it properly) and I’m very happy so far. I’m 177cm and 50kg and got the small. I was hesitant to go for a mummy-style bag because I’m a side or front sleeper and like to put a knee right up so hate being restricted but tested in the living room and, although it’s narrower at the foot box, it’s much wider in the waist area so I can get my knee right up far easier than in my old bag. It’s clearly very well made and feels super luxurious. The zip snags quite a bit but I think that’s expected with such fine fabric. One thing to note is that the ¾ hood is super lame and more like a bit of a head rest than a hood because it’s too small to actually cover your head (and mine isn’t big!). I would get the cocoon in hindsight because of this but if you’re not worried about the hood then I think it’s perfect.
Only used my One Planet Nitrous for two nights up in the Ruahines but very pleased, it packs down very small compared to my other bag and even on a cool night under a fly with Temps of single digits I was warm as toast!! . I might have fitted a small size but got a regular and plenty of room for me at 172cm.
| Variant | |
| loft | 800+ |
| zip side | Left |
| size | Large |
