Sleep Warm. Travel Light. Ready for All Seasons.
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Color: Green
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Fabric: 190T Tear-Proof Waterproof Polyester
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Inner Lining: 190T Pongee Soft Polyester
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Filling: Hollow Cotton
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Comfort Temperature Range:
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Summer Type: Over 25℃
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Spring & Autumn Type: 10℃-20℃
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Winter Type: 0℃-5℃-10℃
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Size: 220 × 75 cm (86" × 29")
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Weight: 0.8 kg (1.8 lbs)
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Design Features: Bottom zipper for breathability, adjustable elastic strap for warmth control
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Includes: Compression bag with double tightening straps
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All-Season Comfort - Choose from multiple weight options for summer, spring/fall, or mild winter conditions.
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Ultralight & Packable - Weighs only 0.8kg and compresses to half its size for easy backpack storage.
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Durable & Weatherproof - Tear-resistant 190T polyester shell with waterproof coating keeps you dry and warm.
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Breathable & Skin-Friendly - Inner lining made with soft 190T polyester pongee for a comfortable sleep.
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Smart Temperature Design - Bottom zipper improves air circulation when hot; elastic strap keeps warmth sealed in when cold.
Whether you're hiking through the mountains or camping by the lake, the Ultralight 4-Season Envelope Sleeping Bag is designed to keep you warm, dry, and comfortable in a wide range of weather conditions. Built with a durable 190T waterproof polyester shell and filled with hollow cotton insulation, this sleeping bag effectively retains heat while blocking out moisture. Its breathable and soft inner lining ensures a cozy sleep, even after a long day of outdoor adventure.
Choose the version that suits your needs-summer, spring/autumn, or winter-with a clever design that adapts to your comfort. The bottom zipper allows you to vent out heat on warmer nights, while the adjustable elastic strap locks in warmth when temperatures drop. Weighing just 0.8kg and including a compression bag that halves its size, it's the perfect portable sleeping solution for backpackers, hikers, and all-season explorers.
At Primebay, we’re committed to making your shopping experience seamless and worry-free. Below you’ll find details on how we process and deliver orders within Australia.
Order Processing
Orders are processed within 1–2 business days after payment confirmation.
Once shipped, you’ll receive a confirmation email with tracking details.
Shipping Times
Our products are shipped directly from our trusted suppliers. Delivery times vary depending on the item and supplier location:
Standard Shipping (Australia-wide): 5–10 business days
Remote/Rural Areas: May require additional 3–5 business days
(Note: Delivery times are estimates and may be affected by , weather conditions, or peak holiday periods.)
Shipping Fees
Free standard shipping on all orders.
Tracking Your Order
All orders come with tracking.
Tracking details may take 2–4 business days to update after dispatch.
Incorrect Address
Please ensure your delivery details are correct when placing your order.
Primebay is not responsible for delays or lost parcels due to incorrect addresses.
Delays & Lost Packages
If your order has not arrived within 30 business days, please contact us at for assistance.
In the case of a lost package, we’ll send a replacement or issue a full refund.
Warranty & Returns
1. Change of Mind Returns
We offer a 30-day Change of Mind return policy, giving you confidence when shopping with us.
If you change your mind about your purchase, you can return your item within 30 days of receiving it for a full refund.
To be eligible for a Change of Mind return:
The item must be unused, unworn, and in its original packaging (including all accessories, tags, and manuals).
You must provide a receipt or proof of purchase.
No restocking fees apply.
Return postage for Change of Mind returns may be at the buyer’s expense, unless otherwise stated.
Please contact us before sending your return to obtain instructions and ensure smooth processing.
2. Warranty & Faulty Items
All our products are covered by a 12-month warranty against manufacturing defects.
If your item develops a fault within the warranty period, please contact us so we can assist with a repair, replacement, or refund, in line with the Australian Consumer Law (ACCC Consumer Guarantees).
To process a warranty claim, you may be asked to provide:
A detailed description of the issue, and
Clear photos or videos showing the fault.
Please note that warranty claims do not apply to damage caused by misuse, neglect, or normal wear and tear.
3. Need Help?
If you have any questions about returns or warranty claims, please contact our customer service team — we’re happy to help.