Sleeping BagKingcampSold by BroadOut

Kingcamp

KingCamp Oasis C 450 Sleeping Bag | 3-Season Cotton Flannel-Lined Bag, 36degF Comfort Rating, Rectangular Envelope Design for Adults

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

3-season Sleeping

ISO comfort rating of 36°F

100% Cotton

Flannel lining for a soft,

Rectangular Envelope

Design offers a roomy, relaxed

450g Polyester

Fill provides balanced insulation for

190t Polyester

Shell has a water-repellent coating

$69.99
View on BroadOut

You'll be taken to BroadOut to complete your purchase.

Hunter's Outpost earns a commission from affiliate links at no extra cost to you.

SKU: kingcamp-oasis-c-450-sleeping-bag-cotton-flannel-lining-3-season

Overview

Built for campers who prioritize comfort, this sleeping bag is suited to spring, summer, and fall trips where a roomier sleep setup is welcome. Its ISO-tested 36°F comfort rating, cotton flannel lining, and polyester fill are paired with a rectangular envelope shape that allows more natural movement than a narrow mummy-style bag. The weather-resistant shell, full-length two-way zipper, adjustable hood drawcord, and draft-reducing collar baffle add practical function for car camping, RV use, backyard sleepouts, and similar overnight stays. It also packs into the included compression bag for easier transport when space matters.

Why Hunters Choose the Kingcamp

Iso-certified 3-season

Temperature ratings provide clear guidance

100% Cotton

Flannel lining offers a soft,

Roomy Rectangular

Envelope design allows more natural

450g Polyester

Fill provides balanced insulation without

Water-repellent 190t

Polyester shell adds protection from

Key Features

  • 3-season sleeping bag with ISO comfort rating of 36°F (2°C).
  • 100% cotton flannel lining for a soft, comfortable feel.
  • Rectangular envelope design offers a roomy, relaxed fit.
  • 450g polyester fill provides balanced insulation for spring through fall.
  • 190T polyester shell has a water-repellent coating.
  • Full-length two-way zipper, adjustable hood drawcord, and collar zipper baffle.
  • Includes compression storage bag for easier transport and storage.

Best Used For

  • Car campers wanting a roomy, comfort-focused bag for spring through fall trips
  • RV travelers who value soft lining and easy packing for storage
  • Backyard sleepout users needing a familiar, bed-like sleeping setup outdoors
  • Festival campers looking for a warm, portable rectangular bag with extra space
  • Couples who want two bags zipped together for shared sleeping comfort

Specifications

Comfort Rating36°F (2°C)
Extreme Rating3°F (-16°C)
IncludedSleeping Bag, Compression Storage Bag
Insulation450g/ Polyester Loose Fiber Fill
Lining100% Cotton Flannel
Lower Limit30°F (-1°C)
Packed Size15.4" x 9.5" diameter (39 x 24 cm)
Perfect ForSpring, Summer & Fall Camping; Car Camping & RV Trips; Backyard Sleepouts & Guest Bed Backup; Festival Camping & Outdoor Events; Couples (Two bags zip together)
ShapeRectangular / Envelope
Shell Fabric190T Polyester with Water-Repellent Coating
Temperature Rating Iso[object Object]
Unfolded Size86.6" L x 29.5" W (220 x 75 cm)
Weight4.63 lbs (2.1 kg)
ZipperFull-Length Two-Way

Pros

  • ISO-certified 3-season temperature ratings provide clear guidance for spring through fall use.
  • 100% cotton flannel lining offers a soft, comfortable feel against the skin.
  • Roomy rectangular envelope design allows more natural movement and stretch.
  • 450g polyester fill provides balanced insulation without feeling overly bulky.
  • Water-repellent 190T polyester shell adds protection from dew and light moisture.
  • Compression storage bag included for easier packing and transport.

Considerations & Trade-offs

  • The 36°F comfort rating is suited to spring, summer, and fall use, so it may not be the right choice for colder conditions beyond that range.
  • At 4.63 lbs, it is more of a comfort-focused bag than a lightweight backpacking option.
  • The roomy rectangular envelope shape offers space to move, but it is less compact than mummy-style designs.
  • The cotton flannel lining adds softness and warmth, but it is a comfort-first material choice rather than a minimalist one for fast-drying, ultralight packing.

Suggested Comparisons

  • Car camping sleeping bags
  • RV camping bedding
  • Rectangular envelope sleeping bags
  • Camping sleep systems for couples

Suggested Accessories

  • Sleeping bag liner
  • Compression sack
  • Camping pillow
  • Sleeping pad

Frequently Asked Questions

What temperature range is this sleeping bag rated for?

It is ISO tested with a 36°F (2°C) comfort rating, a 30°F (-1°C) lower limit, and a 3°F (-16°C) extreme rating.

Is the KingCamp Oasis C 450 suitable for backpacking?

The product is described as compressible and portable, and it includes a compression storage bag. However, it is also positioned for car camping, RV trips, backyard sleepouts, and similar uses, so the source data does not specifically present it as a backpacking-focused bag.

What kind of sleeping bag shape does it have?

It uses a rectangular envelope design with a roomy, relaxed fit. The listed unfolded size is 86.6 in x 29.5 in (220 x 75 cm).

Can two of these bags be zipped together?

Yes. The product notes that two bags can mate together for double-width comfort.

What materials are listed for the lining, shell, and insulation?

The lining is 100% cotton flannel, the shell is 190T polyester with a water-repellent coating, and the insulation is 450g/polyester loose fiber fill.