An extra blanket is useful when the activity involves sitting still rather than walking hard. The RYCHIC Waterproof Outdoor Blanket Thermal Warm Comforter Camping Hiking Gear Military Gift Tactical Essentials Accessories Cool Equipment Survival Stuff Ice Kayak Fishing Supplies Army Research Kits is marketed around that broad outdoor-comfort role, from camping to fishing, rather than one narrowly defined sleeping system.

The long title offers plenty of possible uses. I'd narrow it to the one you actually have in mind and check whether the blanket's dimensions and construction support that job.

What the Listing Establishes

Outdoor blanket and comforter format.
Waterproof description.
Thermal and warm wording without a verified temperature figure in the product description used here.

I wouldn't turn those words into a claim about a particular night temperature. Check the fill, fabric, overall size, and weight before deciding how much room it deserves in your kit.

Sitting Coverage Is Different From Sleeping Coverage

A blanket across your legs at a camp chair can be useful without meeting the same requirements as overnight bedding. For sitting, how it drapes and whether it reaches the feet may be more important than whether it tucks neatly around your shoulders.

For sleeping, the ground layer and room to turn become much more significant. A blanket also leaves open edges to manage. Think about the actual position you'll be in instead of assuming every outdoor use is interchangeable.

Questions I'd Settle Before Ordering

Read what waterproof applies to and how to clean the finished item. A fabric claim doesn't automatically explain seams or every opening. Verify whether its folded size fits the vehicle bin or bag you intend to use.

I'd compare the RYCHIC as an extra outdoor comfort layer when the exact specifications match. If the listing can't answer those basic questions, a more clearly documented blanket is easier to buy with confidence. The product's range of advertised activities is less useful than a good fit for one real routine.