- 20 × 35 cm
- -2 °C
- 1.120 g
- 17 × 32 cm
- 3 °C
- 860 g
- 13 × 26 cm
- 7 °C
- 560 g
What matters on the bike
On the bike you carry a handlebar roll, frame bag and saddle bag rather than a rucksack, so every centimetre of pack size counts. That is why this page lists only our down sleeping bags: they give the most warmth per gram and compress the smallest – the same reasons they make good backpacking sleeping bags.
Lightweight sleeping bags compared
| Model | Fill | Comfort | Limit | Weight M / L | Compressed size |
|---|---|---|---|---|---|
| Pyro 250 | Down | 7 °C | 2 °C | 480 / 540 g | 13 x 19 cm |
| Pyro 500 | Down | 3 °C | -3 °C | 780 / 840 g | 17 x 25 cm |
| Pyro 750 | Down | -2 °C | -8 °C | 1,020 / 1,080 g | 20 x 28 cm |
Comfort and limit temperatures from Wechsel product data 2026. Weight without stuff sack in size M (body height up to 175 cm) / L (up to 195 cm). Compressed size in size M (diameter x length).
Which Pyro for which trip?
Summer trips
The Pyro 250: 480 g and 13 x 19 cm compressed. Comfort 7 °C, limit 2 °C – for summer nights in the lowlands and on the coast.
Spring, autumn, mountains
The Pyro 500: 3 °C comfort at 780 g, compressing to 17 x 25 cm – for passes and cool nights.
Winter bikepacking
The Pyro 750: -2 °C comfort at 1,020 g, compressing to 20 x 28 cm.
Your sleep system on the bike
Sleeping bag, mat and tent belong together. Our lightest summer combination: the Pyro 250 (480 g, 13 x 19 cm) and the Aera M air mat (490 g, 20 x 12 cm, R-value 6.0) – 970 g together. Tents with short pole sections are under Bikepacking tents, more mats under Ultralight sleeping mats.
Good to know: on the bike, pack your sleeping bag in a waterproof dry bag or waterproof pannier. The compression sack supplied saves space but does not keep out rain.
Bikepacking sleeping bag FAQs
Which is your lightest sleeping bag?
The Pyro 250 at 480 g in size M.
Down or synthetic for bikepacking?
Down. At a 7 °C comfort rating, the Pyro 250 weighs 480 g and the Tracks Spring synthetic bag 980 g. Just keep the down dry on the bike.
M or L?
M fits up to 175 cm, L up to 195 cm. On the Pyro 250, L weighs 60 g more.
Which sleeping mat goes with it?
The Aera M: 490 g, 20 x 12 cm packed, R-value 6.0. More under Ultralight sleeping mats.