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.