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Ships within 48 hours · Estimated delivery Jul 19 - Jul 24
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Description
Therm-a-Rest NeoAir Xtherm Air Mattress - LargeThe XTherm mattress is the warmest mattress in the NeoAir collection, allowing you to go lighter than ever in winter conditions. Patent pending Reflective Barriers give the XTherm mattress true 4 season warmth without the weight or bulk usually found in a winter worthy mattress. The result is a mattress that weighs less than a pound, takes up less pack space than your water bottle, and provides serious comfort in extremely cold conditions. Pump sack
The XTherm mattress is the warmest mattress in the NeoAir collection, allowing you to go lighter than ever in winter conditions. Patent-pending Reflective Barriers give the XThermâ„¢ mattress true 4-season warmth without the weight or bulk usually found in a winter-worthy mattress. The result is a mattress that weighs less than a pound, takes up less pack space than your water bottle, and provides serious comfort in extremely cold conditions. Pump sack and repair kit included.
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- Extremely Warm: Four layers of reflective material recycle body heat and create air pockets that reduce convective heat loss.
- Comfortable: 2.5-inch thickness and patent-pending Triangular Core Matrixâ„¢ construction provides unrivaled stability and comfort.
- Highly Packable: Low-bulk materials make the XThermâ„¢ mattress compact and as packable as a water bottle.
- Lightweight: Advanced materials and a tapered design reduce weight without compromising warmth.
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| S | M | R | L | |
| Color | Reflex Gray | Reflex Gray | Reflex Gray | Reflex Gray |
| R-Value | 5.7 | 5.7 | 5.7 | 5.7 |
| Weight | 11 oz / 310 g | 14 oz / 410 g | 15 oz / 430 g | 1 lbs 4 oz / 570 g |
| Width | 20 in / 51 cm | 20 in / 51 cm | 20 in / 51 cm | 25 in / 63 cm |
| Length | 47 in / 119 cm | 66 in / 168 cm | 72 in / 183 cm | 77 in / 196 cm |
| Thickness | 2.5 in / 6.3 cm | 2.5 in / 6.3 cm | 2.5 in / 6.3 cm | 2.5 in / 6.3 cm |
| Packed dimension | 9 x 3.3 in / 23x 9 cm | 9 x 4.0 in / 23 x 10 cm | 9 x 4.0 in / 23 x 10 cm | 11 x 4.5 in / 28 x 11 cm |
| Top fabric type | 30d High Tenacity Nylon | 30d High Tenacity Nylon | 30d High Tenacity Nylon | 30d High Tenacity Nylon |
| Bottom fabric type | 70d Nylon Soft Grip | 70d Nylon Soft Grip | 70d Nylon Soft Grip | 70d Nylon Soft Grip |
| Core | Nylon | Nylon | Nylon | Nylon |
| Country of Origin | Made in Seattle, USA | Made in Seattle, USA | Made in Seattle, USA | Made in Seattle, USA |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 25 reviews
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Product Reviews
★★★★★ 5
Most Comfy Pillow Ever Used
Size: King Size Pack of 2, Color: White
I recently purchased the BETU Cooling King Size Pillows Set of 2, and I have been thoroughly impressed with their quality and performance. These pillows have truly transformed my sleeping experience, making them an essential addition to my bedroom.
First and foremost, the shredded memory foam provides fantastic support while remaining incredibly comfortable. These pillows adapt perfectly to my head and neck, offering excellent support for back, neck pain relief, and side sleeping. The adjustability of the memory foam allows me to customize the firmness to my liking, ensuring a perfect balance between soft and firm support. This customization has made a tremendous difference in my sleep quality, reducing any discomfort and ensuring I wake up feeling refreshed and pain-free.
One of the standout features of these pillows is their cooling capability. As a hot sleeper, I struggled to find pillows that keep me cool throughout the night. The BETU Cooling Pillows effectively dissipate heat and maintain a comfortable temperature, allowing me to enjoy a restful and uninterrupted sleep. The cooling technology is truly a game-changer for anyone who tends to overheat during the night.
The pillow covers are another bonus. They are soft, breathable, and easily removable for washing, ensuring that the pillows remain fresh and hygienic. The white cover adds a clean and elegant look to the bedding, making them aesthetically pleasing as well.
The king size is generous and luxurious, providing ample space and comfort. Whether used for sleeping, lounging, or reading in bed, these pillows offer an unparalleled level of comfort and support.
In summary, the BETU Cooling King Size Pillows Set of 2 is an exceptional product. The combination of shredded memory foam, adjustable firmness, and cooling technology makes these pillows perfect for hot sleepers and those in need of superior support for back and neck pain. The high-quality covers and overall design further enhance their value. I highly recommend these pillows to anyone looking to improve their sleep quality and comfort.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 31, 2025
★★★★★ 5
Cooling pillow
Size: Queen (1 Count), Color: White
Good pillow very comfy and cool. Good quality material very durable. I love using it. Perfect size!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 5, 2026
★★★★★ 5
Cool, Supportive, and Great for Hot Sleepers
Size: Queen Size Pack of 2, Color: White
These cooling pillows have been a great upgrade for my sleep. The shredded memory foam provides nice support while still feeling soft and adjustable. I like that the pillows keep their shape and don’t go flat during the night.
The cooling fabric really helps if you tend to sleep warm. They feel breathable and comfortable, especially compared to traditional memory foam pillows that trap heat. The queen size is generous and works well for both side and back sleeping.
Overall, a great value for a set of two pillows. Comfortable, supportive, and noticeably cooler than my old ones. I would definitely buy them again.
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Reviewed in the United States on March 6, 2026
★★★★★ 3
Great pillows, needs more filler tho!
Size: King Size Pack of 2, Color: White
Partner says it's the best thing that's ever happened and has helped his back/shoulder pain tremendously. I personally think it needs to give you more fluff or whatever the filling is. Because the tiny bag that comes btwn the two was not enough! However, still comfy, filling is nice and fluffy like a cloud.
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Reviewed in the United States on March 25, 2026
★★★★★ 5
Very comfortable
Size: Queen (1 Count), Color: White, Size: Queen (1 Count), Color: White
Takes a few minutes to fluff up and inflate after opening. Nice fabric. One side is bamboo and one side is cooling. Looks high quality.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
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