Sea to summit Spark sleeping bag

Embark on your ultralight adventures with the Sea to Summit Spark sleeping bag. Engineered for minimalist explorers, it offers exceptional warmth-to-weight ratio with premium down insulation, keeping you cozy on cool nights. Its contoured mummy shape and adjustable hood maximize heat retention. Weighing just 493g and packing down incredibly small, it’s perfect for thru-hiking, bikepacking, and alpine ascents where every gram counts. Recommended for 11°C (lower limit 7°C), it ensures a restful sleep without the bulk. Available in grey and yellow