The Spark -18C Down sleeping bag is ideal for a sleeping bag that can also be unpacked in winter. The 850cuin down combined with the mummy cut creates an efficient thermal performance. Despite its thick and functional insulation, the sleeping bag is comparatively light at 1113g at 185cm. The RDS-certified down is treated to be pfc-free and offers excellent warmth even when damp. The comfort of the sleeping bag is extremely high, the double thermal collar and hood provide a comfortable, cozy feeling. The 10D polyamide outer and inner material is extremely robust, so the sleeping bag is durable with a lot of use and especially when sleeping outdoors and you can experience plenty of adventures with it.
The Spark -18C Down sleeping bag is ideal for a sleeping bag that can also be unpacked in winter. The 850cuin down combined with the mummy cut creates an efficient thermal performance. Despite its thick and functional insulation, the sleeping bag is comparatively light at 1113g at 185cm. The RDS-certified down is treated to be pfc-free and offers excellent warmth even when damp. The comfort of the sleeping bag is extremely high, the double thermal collar and hood provide a comfortable, cozy feeling. The 10D polyamide outer and inner material is extremely robust, so the sleeping bag is durable with a lot of use and especially when sleeping outdoors and you can experience plenty of adventures with it.
in 21 offers
The lowest price for Sea to Summit Spark -18C Down Sleeping Bag Long right now is $687.00 at Ubuy Australia, compared across 19 retailers.
The all-time low was $499.99 on 29 Oct 2026 β today's price is 37% above the lowest ever. It has been notably cheaper before β worth setting a price alert.
Sea to Summit Spark -18C Down Sleeping Bag Long
The Spark -18C Down sleeping bag is ideal for a sleeping bag that can also be unpacked in winter. The 850cuin down combined with the mummy cut creates an efficient thermal performance. Despite its thick and functional insulation, the sleeping bag is comparatively light at 1113g at 185cm. The RDS-certified down is treated to be pfc-free and offers excellent warmth even when damp. The comfort of the sleeping bag is extremely high, the double thermal collar and hood provide a comfortable, cozy feeling. The 10D polyamide outer and inner material is extremely robust, so the sleeping bag is durable with a lot of use and especially when sleeping outdoors and you can experience plenty of adventures with it.
The Spark -18C Down sleeping bag is ideal for a sleeping bag that can also be unpacked in winter. The 850cuin down combined with the mummy cut creates an efficient thermal performance. Despite its thick and functional insulation, the sleeping bag is comparatively light at 1113g at 185cm. The RDS-certified down is treated to be pfc-free and offers excellent warmth even when damp. The comfort of the sleeping bag is extremely high, the double thermal collar and hood provide a comfortable, cozy feeling. The 10D polyamide outer and inner material is extremely robust, so the sleeping bag is durable with a lot of use and especially when sleeping outdoors and you can experience plenty of adventures with it.
Prices last updated 2 Nov 2026.
Last updated at 02/11/2026 11:40:25
Sea to Summit Spark Down Sleeping Bag
Delivery between 6β10 Nov $41
Sea To Summit Spark Down Sleeping Bag Long / -18C/0F
Free delivery
Sea to Summit Spark Down Sleeping Bag -18C|0F - Long
Free delivery between 4β9 Nov
Sea To Summit Spark Down Sleeping Bag -18C Long
Free delivery between 6β9 Nov
Sea to Summit Spark Down Sleeping Bag -18C|0F / Long
Delivery between 9β11 Nov $13.90
Spark Down Sleeping Bag, -9Β°C / Long
Sea To Summit Spark -18C down sleeping bag - Long
Delivery by 10 Nov $64
Sea To Summit Spark -18C down sleeping bag - Long
Delivery $39.10
Sea To Summit Spark -18C down sleeping bag - Long
Delivery $39.10
Sea To Summit Spark-18Β°c Sleeping Bag Yellow Long / Left Zipper
Delivery $41.49
| Brand | Sea to Summit |
| Shape | Mummy |
| Department | Women's |
| Long | Yes |
| Water Resistant | Yes |
Sea to Summit Spark Down Sleeping Bag
Delivery between 6β10 Nov $41
Sea To Summit Spark Down Sleeping Bag Long / -18C/0F
Free delivery
Sea to Summit Spark Down Sleeping Bag -18C|0F - Long
Free delivery between 4β9 Nov
Sea To Summit Spark Down Sleeping Bag -18C Long
Free delivery between 6β9 Nov
Sea to Summit Spark Down Sleeping Bag -18C|0F / Long
Delivery between 9β11 Nov $13.90
| Brand | Sea to Summit |
| Shape | Mummy |
| Department | Women's |
| Long | Yes |
| Water Resistant | Yes |