I need to wash this sleeping bag, but there's no instruction tag on it and I can't find washing instructions online.

https://seatosummitusa.com/products/spark-ultralight-sleeping-bag-series

FEATURES

• ULTRA-DRY Down 850+ Loft 90% Down Cluster Premium Goose Down certified Responsible Down Standard (RDS)
• 10D shell and 7D liner materials help to achieve the incredible lightweight and compact packed size
• Includes lightweight Ultra-Sil™ compression bag and storage cell
• Zipper-length trimmed for gram-saving performance
  • 50°F, 40°F, and 28°F have 1/3-length zippers
  • 18°F and 5°F have full-length side zippers
• Baffle construction
  • 50°F and 40°F have sewn-through construction.
  • 28°F has baffles in the torso and sewn through in the leg area.
  • 18°F and 5°F are fully baffled.