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Ships within 48 hours · Estimated delivery Jul 31 - Aug 5
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Description
iSeries NXG - 13.5" Memory Foam Medium Mattress 3500Weve evolved the Serta iSeries NXG to be the next generation of comfort. We've built this Medium feel mattress with a series of benefits for the sleep you want. Experience immediate cooling, instant pressure relief, and ideal support for a deeper , more restful sleep at a price that makes sense. Featuring high density memory foam, NXG Memory Foam delivers deep, contouring pressure relief. A cool to the touch fabric oers instant cooling, while Carbon
We’ve evolved the Serta® iSeries NXG™ to be the next generation of comfort. We've built this Medium feel mattress with a series of benefits for the sleep you want. Experience immediate cooling, instant pressure relief, and ideal support for a deeper , more restful sleep at a price that makes sense. Featuring high-density memory foam, NXG™ Memory Foam delivers deep, contouring pressure relief. A cool-to-the-touch fabric offers instant cooling, while Carbon Fiber Memory Foam draws heat away from the body for all-night comfort. Plus, a dense foam core provides durable support.iSeries NXG - 13.5" Memory Foam Medium Mattress 3500 - Twin Long
39.0"W x 79.5"D x 13.5"H - 94.62 lb
iSeries NXG - 13.5" Memory Foam Medium Mattress 3500 - Full
54.0"W x 74.5"D x 13.5"H - 120.11 lb
iSeries NXG - 13.5" Memory Foam Medium Mattress 3500 - Queen
60.0"W x 79.5"D x 13.5"H - 140.01 lb
iSeries NXG - 13.5" Memory Foam Medium Mattress 3500 - Split Head Queen
60.0"W x 79.5"D x 13.5"H - 141.25 lb
iSeries NXG - 13.5" Memory Foam Medium Mattress 3500 - King
76.0"W x 79.5"D x 13.5"H - 175.69 lb
iSeries NXG - 13.5" Memory Foam Medium Mattress 3500 - Split Head King
76.0"W x 79.5"D x 13.5"H - 174.56 lb
iSeries NXG - 13.5" Memory Foam Medium Mattress 3500 - California King
72.0"W x 83.5"D x 13.5"H - 174.95 lb
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
4.2 ★★★★★
Based on 21 reviews
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Product Reviews
★★★★★ 5
Great!
Size: XX-Large, Color: Nude
REVIEW FROM A REAL PERSON WITH NO FINANCIAL INCENTIVES
This is my first time ever wearing a strapless bra and I really like this one! It's very comfy and feels like wearing any other sports bra just, well, without the straps (though they do include straps in the box that you could attach if you wanted). I'm somewhere around a 40DDD and got a 2x and it fits well, though I did wear it to work one day and by the end of the day, it did feel like it was digging/squeezing into my side a bit too much (however it had been 10hrs by then). The bra IS stretchy but if I were really any bigger, I think I'd want to go to a 3x.
Only very minor issues with it slipping, nothing even close to where I was worried anything was going to pop out or anything, even after being out in 90F heat.
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Reviewed in the United States on May 29, 2026
★★★★★ 3
Stays in place
Size: Medium, Color: White
I’d give the Letts Jolli Push-Up Strapless Bra a solid 3 stars. The fabric quality is actually really nice—it feels soft, smooth, and comfortable against the skin, which is a big plus for something strapless. It also does a great job staying in place. I didn’t have to constantly adjust or worry about it slipping down throughout the day, which is usually my biggest concern with strapless bras.
That said, the “push-up” aspect was a bit disappointing. It didn’t really provide much lift or enhancement like I expected, so if you’re looking for noticeable cleavage, this might fall short.
Overall, it’s comfortable and reliable for staying put, but it doesn’t quite deliver on the push-up promise.
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Reviewed in the United States on April 1, 2026
★★★★★ 5
It holds the girls up!
Size: Large, Color: Nude
This is absolutely the best strapless bra I have ever owned! It stays put, doesn’t ride up or ride down & I don’t have to adjust it. It fits true to size. Worth the money! It’s also not the sexiest bra, but when you just want a strapless bra that holds the girls up, I promise it will do that!
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Reviewed in the United States on May 23, 2026
★★★★★ 5
Will be my go to strapless for sleeveless everything
Size: Medium, Color: Nude
Ok so, this did not disappoint. Supportive and has cups/padding so there's no show through. Stays in place. Sturdy will not roll on you or stretch out half way through your day/ evening. Straps are included but not necessary.
Do not try to put on right out of the shower. You also need to step into it to pull up. Do not try to pull it over your head.
Perfect for under spaghetti string tops/tube tops.
I am 135 lbs, 34DD or a 36D depends on bra. I bought a medium and it holds everything tight. I believe I could also go with a large at this weight to have a little less compression.
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Reviewed in the United States on May 17, 2026
★★★★★ 4
Very Comfortable!
Size: Large, Color: Nude
Very comfortable and supportive. I will use the clear straps because I had to take the pads out. They lend extra support but are a little too small. I wish they were as big as the cup. I couldn't go any larger or it would slide off. I am a 34DD and ordered the large. The clear straps are good, they don't feel cheap and they are easy to adjust. This is the most comfortable strapless bra/clear strap bra I've ever tried.
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Reviewed in the United States on May 25, 2026
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