Sea to Summit Spark SP1 Sleeping Bag
by Sea to Summit
Australian-made ultralight sleeping bag. 290g, comfort rated to 10°C. Fits in a water bottle. Best warm-weather sleeping bag for Australian van life.
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✓ Pros
- Only 290g
- Packs to bottle size
- Australian brand
- 850+ loft down
- Water resistant treatment
✗ Cons
- 10C rating — not for alpine winter
- Expensive
- Requires care washing
Full Review
The Sea to Summit Spark SP1 is from Perth, Western Australia — one of the few genuinely Australian outdoor brands. The Spark SP1 weighs 290g and packs to the size of a 750ml water bottle, making it the ideal sleeping bag for Australian coastal van life where temperatures rarely drop below 8-10°C.
Right Bag for Australia
Most Australian van life happens in conditions where a heavy 4-season sleeping bag is overkill. The SP1's 10°C comfort rating handles most coastal east coast nights spring through autumn with appropriate base layers.
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