Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 13 - Jul 18
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Description
Millennium Cushion Firm Gel Memory Foam Hybrid MattressDiscover the luxury of this twin XL hybrid mattress. Two layers of temperature regulating material keep you at a comfortable temperature all night long. Copper infused memory foam contributes to the cooling performance, and wrapped coils keep your mattress fresh. Contouring comfort foam and wrapped coils deliver amazing support, pressure relief and comfort. In addition, the premium pressure sensitive NanoCoil unit and individually wrapped coil pack
Discover the luxury of this twin XL hybrid mattress. Two layers of temperature-regulating material keep you at a comfortable temperature all night long. Copper-infused memory foam contributes to the cooling performance, and wrapped coils keep your mattress fresh. Contouring comfort foam and wrapped coils deliver amazing support, pressure relief and comfort. In addition, the premium pressure-sensitive NanoCoil unit and individually wrapped coil pack help to provide a great night's sleep.
Specifications
Specifications Details
Brand Name
Sierra Sleep® by Ashley
Material
Fabric
Lifestyle
Traditional
Bed Size
Twin XL
Assembly
Assembly Not Required
Product Details
- Comfort level: luxury cushion firm
- 2 layers of phase change material (PCM)
- 2" copper-infused memory foam; 3" sculpted body-contouring comfort foam
- Wrapped coils
- Premium pressure-sensitive NanoCoil unit; individually wrapped coil pack
- 4-way stretch knit cover
- Adjustable base compatible
- 10-year non-prorated warranty
- Note: Purchasing mattress and foundation from two different brands may void warranty; see warranty for details
- Foundation/box spring sold separately
- Mattress ships in a box; please allow 48 hours for your mattress to fully expand after opening
- State recycling fee may apply
- Made in USA
Available Options
Specifications Details
Available Bed Sizes
Queen | Twin XL | King | California King
Available Colors
Color Options
White
Available Configurations
Bed Size
SKU #
Dimensions
Weight
Twin XL
M50771
38''W x 80''D x 14''H
75 lbs.
California King
M50751
72''W x 84''D x 14''H
128 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
4.5 ★★★★★
Based on 634 reviews
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Product Reviews
★★★★★ 5
So sweet
Format: Kindle
It’s so unexpectedly sweet that it sneaks up on you. Each character is so unique and charming. I love the openness and honesty among their pack. It really blows me away how wonderful this omegaverse trope plays out.
I received a free copy of this book and am voluntarily leaving a review.
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Reviewed in the United States on March 21, 2026
★★★★★ 2
Needs editing
Format: Kindle
Cute storyline and promising characters, but the lack of editing is painful to read. I would love to read an edited version.
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Reviewed in the United States on April 10, 2025
★★★★★ 5
ABSOLUTELY A MUST for Omegaverse Girls!!!
I ABSOLUTELY LOVE Jillian West and her books!!! I’m so happy I already bought book two and now I have to buy the others for the Assurance Security series!!
Not gonna lie Val kind of annoyed me at the beginning but she grew on me!! Her men are chef’s kisses!!! Holt annoys me some but I can let it slide. I already bought part two so I’m going to be reading that in between work phone calls!!!! DON’T TELL MY BOSS 😂😂😂😂
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Reviewed in the United States on September 30, 2025
★★★★★ 4
Baby bumps and bodyguards
Format: Kindle
Dark, emotional, and unexpectedly tender, Not Ready is an omegaverse romance that delivers found family feels, fierce protectiveness, and a very pregnant heroine who refuses to break. Vale’s on the run from a stalker, but lands in the arms of three private security alphas, cue the swoony tension, fake marriage twist, and slow-burn heat.
It’s a little gritty, a little soft, and a whole lot addictive. If you love protective alphas, high stakes, and heroines with quiet strength, this one’s a must-read.
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Reviewed in the United States on December 18, 2025
★★★★★ 5
Strong Omegaverse Comfort and a Attention Grabbing Plot
Format: Kindle
Jillian West never misses when it comes to Omegaverse, and Not Ready is no exception. This story was the perfect blend of cozy comfort and emotional depth while still delivering a strong plot.
Vale is such a powerful heroine, she is strong, capable, and determined but I love that she still allows her pack to love and take care of her. It’s that balance of independence and vulnerability that makes her so relatable.
The relationship dynamics were amazing: Bishop is steadfast and completely head over heels, Mercy is skeptical but protective in his own way, and Holt is the hesitant one whose slow fall is so satisfying to watch unfold.
The romance hits that sweet spot between insta-love and cautious build, keeping me hooked the entire way through. And that ending. Oh my god, the cliffhanger! I need the next book in this duet immediately.
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Reviewed in the United States on August 28, 2025