Sonder Bikes
Sleeping Bags
Our sleeping bags come in down and synthetic fills, from summer bags to expedition bags. Choose by the AK Sleep Limit, the lowest temperature most people sleep comfortably at. PipeDream is our lightweight down range, with sleep limits of 7°C (200), -6°C (400) and -12°C (600). Cloud Peak is synthetic, keeps its warmth when damp and is one of our most affordable ranges, from 1 to 4 season. Ultra 80 and Ultra 120 are ultralight synthetic bags for fast trips, at 495g and 580g.
Sleeping Bags
Our down sleeping bags use high-loft ethically sourced duck and goose down. Our lightweight synthetic sleeping bags use durable Thermolite® Ecomade insulation, and the Ultra bags use PrimaLoft® Gold. Several of our bags come in Regular and Long lengths.
All Alpkit sleeping bag fabrics are treated with a PFAS-free water repellent.
Responsible Down Standard
We use only RDS certified down. The RDS is an independent standard that guarantees our down comes from birds that are free from live-plucking, force-feeding, or mistreatment.
PrimaLoft® synthetic insulation
Lightweight and compressible PrimaLoft® synthetic insulation is hydrophobic and treated with a water repellent finish. This means it maintains its insulative properties even when damp.
Sleeping bags are part of the Alpkit camping range, alongside tents, sleeping mats, bivvy bags and accessories.
Alpkit sleeping bag range explained
Sleeping bags are rated by season, and matching the rating to how you actually camp matters more than chasing the lightest bag on the page. 1-2 season bags suit summer camping above 0°C, roughly May to September in the UK. 3-season bags cover spring to autumn down to around 0°C. They're the right choice for most backpacking and bikepacking trips: PipeDream 400 and Cloud Peak 300 are both 3-season. 4-season bags are rated below 0°C, built for winter camping, cold sleepers, or trekking at altitude. 5-season bags are expedition-grade: specialist baffle construction and 750 fill power down for high-altitude or polar use.
Designed by us, direct to you
Our gear goes directly from us to you. We design our sleeping bags here in the UK, and our warehouse team sends them straight to your door, or you can buy them in one of our stores. There are no distributors or retailers in the chain. It's how we keep making high-performing sleeping bags at the best possible value.
Further reading
- Staying warm in your sleeping bag: winter camping tips
- Ethical Down and the Responsible Down Standard
- PFAS in outdoor gear: what they are, why they matter, and how Alpkit became PFAS-free
- Down vs synthetic sleeping bags: which is right for you
- Choosing your sleeping bag season rating
- How to wash your down sleeping bag
- How Alpkit tests sleeping bag temperature ratings
- Winter camping guide: stay warm, safe and well equipped
1 & 2-season sleeping bags
These lightweight sleeping bags have small pack sizes and make ideal summer sleeping bags. Our 2-season sleeping bags are designed for typical May to September British conditions or for temperatures comfortably above 0°C. Our 1-season sleeping bags are for camping in the height of summer and in hot climates.
3-season sleeping bags
If you're going to be camping down to 0°C, a 3-season sleeping bag is the way to go. These versatile bags cover typical British temperatures for spring to autumn. Our PipeDream and SkyeHigh down sleeping bags balance warmth, low weight and compressibility for backpacking and bikepacking.
4-season sleeping bags
These bags are designed for serious cold weather camping, below 0°C. They make ideal winter sleeping bags for typical British conditions and can also be used for trekking holidays and camping at altitude. You might prefer to use a 4-season sleeping bag to a 3-season one if you're a cold sleeper.
5-season sleeping bags
These sleeping bags are designed for serious expedition use, whether at high altitude or in the polar regions. They use specialist baffle constructions and high quality 750FP goose down to keep you warm well below zero. A relaxed mummy shape gives you room to keep your layers on at night.
Mountain journal
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