Rize Contemporary IV Adjustable Base
Overview / Description
The Rize Contemporary IV is the “all-the-bells-and-whistles” base in this family. On top of full head and foot lift, it adds motorized head tilt (to fine-tune your neck angle for reading, tablets, or CPAP use) and adjustable edge-to-edge lumbar support. Dual massage motors, a five-piece modular no-skid deck, motion-activated under-bed lighting, and USB-A/USB-C ports on both sides make it feel more like a modern piece of furniture than a bare metal frame.
If you want a base that can do almost everything—help with snoring, ease an achy back, hold you in a better upright position, and keep your devices charged—this is usually the Rize model we show you.
Best For
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People with back issues who benefit from adjustable lumbar support
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Serious “in-bed loungers” (reading, TV, laptop) who want precise head and head-tilt adjustment
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Tech-friendly households that want USB-C, motion lights, and app/voice control
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Shoppers looking for a top-tier base to match a premium mattress
Key Features
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Full head and foot positioning with head incline up to ~65° and foot to ~32°
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Separate motorized head tilt to fine-tune neck angle over the main head articulation
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Edge-to-edge adjustable lumbar support for extra lower-back lift when needed
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Dual massage motors and preset positions (Flat, Anti-Snore, Zero Gravity, Lounge/Incline)
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USB-A and USB-C ports on each side, motion-activated under-bed lighting, mobile and voice app control
Features & Specs
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Lift & Positions
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Head/foot lift, motorized head tilt, adjustable lumbar section
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Preset buttons for Flat, Anti-Snore, Zero-G, Lounge/Incline, plus programmable positions
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Comfort & Tech
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Dual massage motors with multiple intensities
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Motion-activated LED under-bed light that comes on when you get up at night
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USB-A and USB-C ports on both sides to charge phones, tablets, and laptops
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Design & Compatibility
Adjustable Base Collection – Mattress Mart
More and more of our customers tell us they want to be more comfortable in bed without stacking pillows or fighting with wedge cushions. Adjustable bases turn your mattress into a more supportive place to read, watch TV, work on a laptop, or simply sleep better. At Mattress Mart, we focus on power bases that are quiet, reliable, and built for real households—not flimsy gimmicks.
That’s why we carry a curated group of adjustable bases from Rize Home, Sealy, and Tempur-Pedic, ranging from simple head-and-foot lift models to full-featured bases with massage, lumbar support, USB ports, lights, and zero-gravity presets. Whether you’re trying to ease snoring, take pressure off your back and legs, or just want a more comfortable “lounge” position, we can help match you to the base that fits your needs and budget. Pair any of these with a quality mattress and you’ve essentially turned your bedroom into a custom-fit comfort system—one that can easily outlast the disposable frames and bargain motors flooding the market today.
