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Ships within 48 hours · Estimated delivery Sep 23 - Sep 28
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Description
Siena Twin XL Mattress - Memory Foam 10" - Medium Firm - 180 Night Trial - 5 Premium Layers - Breathable Cool Comfort Sleep Bed in a Box, 10-Year Warranty, Twin XL, WhiteAbout This 180 NIGHT HOME TRIAL & 10 YEAR MANUFACTURER WARRANTY Rest easy with a Siena mattress. You'll enjoy a 180 night home trial, and we stand by our product if theres any defect or flaw in your Siena in the first 10 years, we'll replace or repair it for free. FIVE LAYERS OF COMFORT Siena doesnt compromise on comfort. We might cost a lot less than our competitors, but your Siena mattress sure packs a punch when it comes to responsive comfort,
About This
- 180-NIGHT HOME TRIAL & 10 YEAR MANUFACTURER WARRANTY - Rest easy with a Siena mattress. You'll enjoy a 180-night home trial, and we stand by our product – if there’s any defect or flaw in your Siena in the first 10 years, we'll replace or repair it for free.
- FIVE LAYERS OF COMFORT - Siena doesn’t compromise on comfort. We might cost a lot less than our competitors, but your Siena mattress sure packs a punch when it comes to responsive comfort, supporting proper spinal alignment, and relieving pressure points. With lots of motion-reducing foam, you won’t be disturbed if your partner or pet moves.
- GEL MEMORY FOAM - A 2” layer of pressure relieving gel memory foam adapts to your unique body shape and size, while contouring to your curves.
- MEDIUM FIRM AND SUPPORTIVE - Finding the perfect firmness is a breeze with Siena. It's medium-firm, striking the ideal balance between comfort and support for a restful night's sleep.
- SIMPLE TO SET UP - Just move the box to the room you want to use it in, unbox and unroll your mattress, and watch it expand before your eyes. Your Siena will be snooze-ready in 24 hours!
Overview
- Brand : Siena
- Size : Twin XL
- Product Dimensions : 80"L x 38"W x 10"Th
- Top Style : Gel Top
- Number of Layers : 5
- Fill Material : Gel Memory Foam, Memory Foam
- Special Feature : Pressure-Relieving Gel Memory Foam, CertiPUR-US® Certified, Simple to Set Up, Medium Firm, Breathable Pressure-Relieving Gel Memory Foam, CertiPUR-US® Certified, Simple to Set Up, Medium Firm, Breathable
- Color : White
- Coil Type : Continuous Coil
- Model Name : Siena
- : Item Firmness Description Medium Firm Age Range (Description) Adult
- : Item Firmness Description Medium Firm
- : Age Range (Description) Adult
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
4.1 ★★★★★
Based on 23 reviews
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Product Reviews
★★★★★ 4
Could be longer in the legs but that’s my preference
Size: X-Large, Color: Set-un2
Very comfortable just wish they were a little longer
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Reviewed in the United States on February 25, 2025
★★★★★ 5
Perfect for my body and fit preference, plus COTTON
Size: X-Large, Color: Set-unbl
Update: Different color packs fit differently. I've purchased two packages, one all-black and one black with the colorful waistbands. The all-black are a little smaller. IMO the all-black run a half to a full size small, and the black with the colorful waistbands run true to size.
Listen, all of our bodies and preferences are so different, but these are perfect for my body and my fit preference. They hit at my bellybutton and I would describe the length as short-boyshorts, but not hipsters. Most importantly, they're cotton, which my body reacts much better to these days.
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Reviewed in the United States on February 13, 2026
★★★★★ 5
Good quality
Size: Medium, Color: Set-unbl
They fit perfectly and seem well made
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Reviewed in the United States on February 22, 2026
★★★★★ 5
Will be buying more
Size: X-Large, Color: Set-unbl
LOVE THESE!
They’re so comfortable and stretchy.
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Reviewed in the United States on April 24, 2026
★★★★★ 3
They're ok
Size: Large, Color: Set-mu2
These are ok. I'm 5'6", 150lbs. I got a large. The colors are fun. The waist band is comfortable, fits well, doesn't dig in, and sits high enough to not affect a my C-section scar, but they constantly ride up.
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Reviewed in the United States on March 12, 2026