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Ships within 48 hours · Estimated delivery Sep 14 - Sep 19
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Description
Limited Edition Firm MattressLuxury comfort leads to luxury rest. Wake up refreshed and ready to take on the day with this firm twin XL mattress. Packed inside are layers of support foam and gel memory foam to relieve your pressure points. Rows of power packed wrapped coils support you night after night. So snooze awaywith this mattress, you'll treat yourself to a truly restorative sleep experience. Specifications Specifications Details Brand Name Sierra Sleep by Ashley Material
Luxury comfort leads to luxury rest. Wake up refreshed and ready to take on the day with this firm twin XL mattress. Packed inside are layers of support foam and gel memory foam to relieve your pressure points. Rows of power packed wrapped coils support you night after night. So snooze away—with this mattress, you'll treat yourself to a truly restorative sleep experience.
Specifications
Specifications Details
Brand Name
Sierra Sleep® by Ashley
Material
Fabric
Lifestyle
Traditional
Bed Size
Twin XL
Product Details
- Comfort level: firm
- Luxury cotton fiber; super support polyester fiber
- Ultra-firm support foam
- High-density quilt foam; high-density gel support memory foam
- High-density base foam
- Power packed 15-gauge wrapped coils
- Ashley edge "steel encased"; 2 perimeter rows of 13-gauge wrapped coils for edge support
- 4-way stretch knit cover
- 10-year non-prorated warranty
- Note: Purchasing mattress and foundation from two different brands may void warranty; check warranty for details
- Foundation/box spring available, sold separately
- Mattress ships in a box; please allow 48 hours for your mattress to fully expand after opening
- State recycling fee may apply
Available Options
Specifications Details
Available Bed Sizes
Twin XL | California King | King | Queen | Full | Twin
Available Colors
Color Options
White
Available Configurations
Bed Size
SKU #
Dimensions
Weight
Twin XL
M41071
38''W x 80''D x 12''H
57.4 lbs.
California King
M41051
72''W x 84''D x 12''H
100.8 lbs.
King
M41041
76''W x 80''D x 12''H
101.3 lbs.
Queen
M41031
60''W x 80''D x 12''H
80 lbs.
Full
M41021
53''W x 75''D x 12''H
66.6 lbs.
Twin
M41011
38''W x 75''D x 12''H
48.1 lbs.
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
4.0 ★★★★★
Based on 14 reviews
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Product Reviews
★★★★★ 5
My favorite
Size: Medium, Color: Opal Blue/White/Cruise Blue (3-pairs)
My favorite socks, too bad under armour discontinued the cotton blend fabric and went to 100% polyester 😠
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 16, 2026
★★★★★ 5
Comfortable
Size: 6-10, Color: Halo Gray/Assorted
These are my favorite socks!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 22, 2025
★★★★★ 5
Great sock liners
Size: Medium, Color: (001) Black / Black / Pitch Gray
Awesome socks. Has little gel pad on top of heel for no slip. Thin and comfortable. Previously Purchased at Nordstrom rack and no longer in stock. Happy to find here
Note: Will shrink a little best to air dry
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 16, 2026
★★★★★ 5
Very good product
Size: Medium, Color: (001) Black / Black / Pitch Gray
I purchased these to wear inside lowcut slip on casual shoes, I don't particularly like to not wear socks in my shoes for hygienic reasons. Prior to purchasing these socks, all I could find were those made of very light beige hosiery type material , and my slip on shoes would slide around a bit. These are light weight and breathable athletic type material, with a very good gripper strip at the heel. One pair of my slip on casual shoes have a particularly lower cut in the toe area, but the shoe is black and I chose the black color and though I see a hint of the sock there, it matches and does not detract from the look of the casual solid black shoe
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Reviewed in the United States on May 15, 2026
★★★★★ 5
They stay out! No more sock wads!
Size: Medium, Color: (100) White / White / Mod Gray
Best no show socks ever made!!!!! I've been struggling for 2 years to find ones that actually stay on your foot, even other national brands, and I just became content wearing my sneakers without socks. They ALWAYS slid down into my show & I ended up walking on a wad of sock until I could fix it...or usually just took them off after a couple of tries. Enter Under Armor!!! They a mid weight, but not very thick & still breathable. They work too by actually staying on your foot! Not once have they slid down into my show!! Very comfortable but they could be a little more affordable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 1, 2025