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Sleeping & Beds

Sea to Summit Spark SP1 Ultralight Sleeping Bag

by Sea to Summit

(634 reviews) 634 customer reviews
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Perth-based Sea to Summit makes the lightest quality sleeping bags for Australian conditions. The SP1 is the warm-weather choice for van lifers who run hot.

Pros

  • Ultra lightweight 290g
  • Australian brand with local support
  • 850+ loft down
  • Water resistant treatment
  • Packs to water bottle size

Cons

  • 10C rating not suitable for alpine winter
  • Premium price
  • Requires proper storage between trips

Sea to Summit is an Australian brand based in Perth, and their Spark sleeping bags reflect genuine understanding of the weight-vs-warmth tradeoffs that matter in Australian conditions. The SP1 is their warmest ultralight option β€” rated to 10Β°C comfort β€” and at 290g it packs to the size of a large water bottle.

Who the SP1 Is For

Van lifers who travel primarily in the coastal belt of Eastern Australia and southwest WA during spring through autumn. The 10Β°C comfort rating handles most nights in these areas with appropriate base layers. For anyone heading to alpine areas, Tasmania in winter, or central Australia in June/July, the SP2 or SP3 with lower temperature ratings is more appropriate.

The Australian-Made Advantage

Sea to Summit offers Australian warranty support, Australian sizing, and products tested in Australian conditions. The Spark series uses ethically sourced 850+ loft down with a water-resistant Nano-Dry treatment β€” important for the humid coastal conditions of Queensland and NSW where down can absorb moisture from air.

Our Verdict

4.8/5

Perth-based Sea to Summit makes the lightest quality sleeping bags for Australian conditions. The SP1 is the warm-weather choice for van lifers who run hot.

Check Price on Amazon AU

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