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Split King Size Serta iSeries 3500 Medium Mattresses (2 Twin XL Matts)
You Save: $1,839.01 (40%)
FREE DELIVERY in Houston Area! Questions about delivery? Call Mack at (281) 844-1963
Two Mattresses. One Perfect Night's Sleep.
The Serta iSeries NXG 3500 Medium All-Foam Mattress in Split King gives you and your partner the ultimate in personalized comfort — two Twin XL mattresses that pair seamlessly together, each delivering Serta's signature coil-free, all-foam construction with advanced pressure relief and all-night temperature regulation. Made in Texas, this is premium sleep engineered for Houston.
Why Choose the NXG 3500 Medium Split King:
- All-Foam Construction: No coils — just premium performance foams layered for contouring comfort and body-hugging support from edge to edge.
- Cool-to-the-Touch Cover: A breathable, cooling cover helps regulate temperature and keep you sleeping comfortably through Houston's warm nights.
- Advanced Pressure Relief: Multiple foam layers adapt to your shape, easing pressure points on shoulders, hips, and back for restorative sleep.
- Medium Feel: Perfectly balanced between plush and firm — universal comfort for couples and all sleeping positions.
- Reinforced Edge Support: Stable edges for sitting, sleeping, and getting in and out of bed with confidence.
- Adjustable Base Compatible: Both Twin XL mattresses are fully compatible with adjustable bases, so each sleeper can customize their position independently.
- Split King Advantage: Two Twin XL mattresses — each partner gets their own surface with zero motion transfer between sides.
- Made in Texas: Crafted domestically with Serta's trusted reputation for long-lasting support without sagging.
Gallery Furniture Guarantee
- ✅ FREE Same Day Delivery in Houston
- ✅ FREE White Glove Delivery
- ✅ FREE Setup & Installation
- ✅ FREE Old Mattress Haul-Off
- ✅ Price Match Guarantee — Gallery Furniture will beat or match any competitor's pricing
Wake up feeling like yourself again — every single morning.
Perfect for couples who want independent comfort zones, adjustable base users, or anyone upgrading to a premium all-foam sleep system without compromise.
Two Mattresses. One Perfect Night's Sleep.
The Serta iSeries NXG 3500 Medium All-Foam Mattress in Split King gives you and your partner the ultimate in personalized comfort — two Twin XL mattresses that pair seamlessly together, each delivering Serta's signature coil-free, all-foam construction with advanced pressure relief and all-night temperature regulation. Made in Texas, this is premium sleep engineered for Houston.
Why Choose the NXG 3500 Medium Split King:
- All-Foam Construction: No coils — just premium performance foams layered for contouring comfort and body-hugging support from edge to edge.
- Cool-to-the-Touch Cover: A breathable, cooling cover helps regulate temperature and keep you sleeping comfortably through Houston's warm nights.
- Advanced Pressure Relief: Multiple foam layers adapt to your shape, easing pressure points on shoulders, hips, and back for restorative sleep.
- Medium Feel: Perfectly balanced between plush and firm — universal comfort for couples and all sleeping positions.
- Reinforced Edge Support: Stable edges for sitting, sleeping, and getting in and out of bed with confidence.
- Adjustable Base Compatible: Both Twin XL mattresses are fully compatible with adjustable bases, so each sleeper can customize their position independently.
- Split King Advantage: Two Twin XL mattresses — each partner gets their own surface with zero motion transfer between sides.
- Made in Texas: Crafted domestically with Serta's trusted reputation for long-lasting support without sagging.
Gallery Furniture Guarantee
- ✅ FREE Same Day Delivery in Houston
- ✅ FREE White Glove Delivery
- ✅ FREE Setup & Installation
- ✅ FREE Old Mattress Haul-Off
- ✅ Price Match Guarantee — Gallery Furniture will beat or match any competitor's pricing
Wake up feeling like yourself again — every single morning.
Perfect for couples who want independent comfort zones, adjustable base users, or anyone upgrading to a premium all-foam sleep system without compromise.
Gallery Furniture takes great pride in the quality and craftsmanship of our furniture. We know that buying furniture for your home is a serious financial decision, as well as an emotional investment for you and your family. That's why Gallery Furniture takes pride not only in the furniture we sell but also in our commitment to customer service.
To learn more about our return and exchange policy, please visit our page by clicking the button below.
Questions about delivery? Call or text Mack at (281) 844-1963

