King Size Mattresses & Adjustable Beds
King Size Mattresses & Adjustable Beds - Maximum Space & Comfort
Experience the ultimate in spacious sleep with our king size mattress and adjustable bed collection. At 76" x 80", king beds provide 38 inches of sleeping width per person—significantly more room than queen size. Perfect for couples who want maximum space, families who co-sleep, or anyone who simply loves to spread out. Discover king mattresses, adjustable bases, and bed frames designed for luxurious comfort.
King Size Mattresses - Premium Comfort in Every Type
- King Hybrid Mattresses: Gel memory foam and pocketed coils in medium soft, medium, and firm options for balanced comfort
- King Memory Foam Mattresses: Pressure-relieving foam that contours to your body in 11" profiles
- King Latex Mattresses: Natural, eco-friendly latex with customizable comfort layers in 10" and 13" heights
- King Air Mattresses: Adjustable firmness technology with dual-zone controls for personalized comfort on each side
- Split King Mattresses: Two Twin XL mattresses (38" x 80" each) for adjustable bases with independent control
King Adjustable Bases - Independent Control for Couples
Transform your king bed into a luxury sleep system with our adjustable bases featuring wireless remote controls, zero-gravity positioning, therapeutic massage therapy, preset comfort positions, under-bed LED lighting, and USB charging ports. Choose standard king bases (76" x 80") for unified control or split king bases (two Twin XL bases) that allow each partner complete independence.
King Bed Frames - Elegant Foundations
Complete your master bedroom with our king bed frames featuring upholstered headboards with tufted details, nailhead trim accents, sturdy platform construction, compatibility with adjustable bases, and neutral upholstery in light brown, beige, and burlap tones.
Why Choose King Size?
King beds offer unmatched benefits for spacious sleep. They provide 38 inches of width per person compared to 30 inches in a queen, accommodate couples who need extra space or co-sleep with children or pets, work well for taller sleepers who want to sleep diagonally, offer maximum comfort for restless sleepers who move frequently, and create a luxurious focal point in spacious master bedrooms.
Split King vs Standard King
Standard king mattresses (76" x 80") work on traditional frames and non-adjustable foundations, offering unified sleeping surface. Split king configurations feature two separate Twin XL mattresses (38" x 80" each) with independent adjustable bases, perfect for couples who want completely independent head and foot positioning, different mattress firmness on each side, individual massage settings and controls, and the ability to adjust without any disturbance to their partner.
King Size Requirements
Before choosing a king bed, ensure your bedroom can accommodate it comfortably. King beds require a bedroom at least 12' x 12' for comfortable furniture placement and walking space, doorways and stairways wide enough to maneuver the mattress (or choose split king for easier delivery), and sufficient clearance around the bed for nightstands and movement. King bedding and accessories are also larger and may cost more than queen size.
King Size Bedding & Accessories
Complete your king bed with our specialized bedding including deep pocket king sheets designed for thick mattresses and adjustable beds, king mattress protectors for waterproof protection, king pillows and pillow sets, and split king bedding (two Twin XL fitted sheets) for adjustable base configurations.
Perfect For
King size beds are ideal for couples who want maximum personal space, families who co-sleep with children or pets, taller individuals who need extra width to sleep diagonally, restless sleepers who move frequently during the night, master bedrooms with ample space (12' x 12' or larger), and anyone who prioritizes spacious, luxurious sleep.
Complete King Bed Sets
Browse our king mattress and adjustable base bundles for expertly paired sleep systems. Each complete set includes a premium king mattress in your choice of type and firmness, a king adjustable base with massage and positioning features, wireless remote controls, and everything needed for immediate setup. Save money with bundle pricing compared to buying components separately.
Ready to upgrade to king size? Our sleep specialists can help you choose between standard and split king, select the right mattress type and firmness, and ensure your bedroom can accommodate a king bed. Free shipping on all king mattresses, bases, and frames with white glove delivery available.