Ceragem Master S4 Thermal Massage Lounger

General Information

• Manufacturer: CERAGEM Co., Ltd.
• Product Name: Ceragem Master S4
• Product Type: Convertible Thermal Massage Lounger
• Massage Engine: 3rd-Generation CeraCore Engine
• Intended Environment: Indoor / Residential Use
• Available Colors: Brown, Beige & Charcoal Gray

Dimensions & Weight

• Unfolded Dimensions: 84" L × 29.4" W × 8.74" H
• Folded Dimensions: 52" L × 29.4" W × 17.5" H
• Product Weight: 114.6 lb (±6.6 lb)
• Gross Weight: 121 lb (including original packaging)
• Maximum User Weight: 298 lb
• Recommended User Height for Body Sensing: 3'11"–6'1"

Electrical & Power

• Power Source: Corded Electric
• Service Voltage: 100–127V AC
• Frequency: 50/60 Hz
• Power Consumption: 350W
• Maximum Spinal Massage Temperature: 149°F
• Thermal Boost Heating: Up to 149°F in Approximately 10 Minutes
• Abdominal Projector: Adjustable Thermal Heating

Performance & System Capabilities

• Spinal Scanning: Patented Automatic Spinal Scanning
• Massage Mechanism: 3rd-Generation CeraCore Heated Rollers
• Massage Programs: 12 Total
• Automatic Massage Programs: 7
• Manual Massage Modes: 5
• Spinal Massage Intensity: 9 Levels
• Massage Areas: Cervical, Thoracic & Lumbar Regions
• Targeted Programs: Neck, Back & Selected Spinal Areas
• Daily Routine Programs: Morning Stretch & Evening
• Abdominal Projector: Heat & Vibration Massage
• Body Sensing: Automatic Spinal Length & Curvature Scanning
• Convertible Configuration: Ottoman-to-Thermal-Massage-Lounger
• Upholstery: Fabric with High-Density Comfort Foam

Certifications & Compliance

• Manufacturer-Stated FDA Status: FDA-Registered Class I Medical Device

Connectivity & Features

• Remote Control: Digital Handheld Controller
• Audio Connectivity: Bluetooth
• Integrated Speaker: Yes
• Adjustable Temperature Controls: Yes
• Adjustable Massage Intensity: Yes
• Automatic Spinal Scanning: Yes
• Convertible Ottoman Design: Yes
• Foldaway Configuration: Yes

Warranty

• Standard Manufacturer Warranty: 3 Years
• Standard Parts Coverage: 3 Years
• Standard Labor Coverage: 1 Year
• Optional Extended Warranty: $349 (2 Additional Years)
• Total Parts Coverage with Extension: 5 Years
• Total Labor Coverage with Extension: 3 Years
• Warranty Provider: CERAGEM
• Warranty Registration: Through Manufacturer

Designed for residential environments, the Ceragem Master S4 thermal massage lounger combines personalized spinal massage, targeted heat therapy, and a furniture-inspired design suited for everyday home use. When fully extended, the S4 measures approximately 84 inches (L) × 29.4 inches (W) × 8.74 inches (H), providing a full-length surface for thermal massage while maintaining a low-profile configuration suitable for living rooms, bedrooms, and dedicated wellness spaces.

The S4 features a convertible design that reduces its length to approximately 52 inches when folded, transforming into a cushioned ottoman-style furniture piece measuring 17.5 inches high. Its upholstered exterior allows it to complement contemporary home interiors while minimizing its footprint between massage sessions. Sufficient floor space should be maintained for fully extending the lounger, accessing the system comfortably, positioning the abdominal thermal projector, and operating the equipment safely.

The Ceragem Master S4 includes a 3-year manufacturer warranty, providing 1 year of parts and labor coverage followed by 2 additional years of parts-only protection. This warranty provides coverage under Ceragem's applicable manufacturer terms and conditions.

An optional extended warranty is available for $349, adding 2 years of protection and expanding total coverage to 3 years of labor and 5 years of parts coverage. All warranty benefits, eligibility requirements, and service arrangements are subject to Ceragem's current warranty terms.

These additional warranties can be selected in the Enhance Your System section located adjacent to the Add to Cart button.

Please see the SanaVi Warranty Policy Page for further details and information.

Ceragem provides dedicated U.S.-based customer support to assist with product questions, service needs, and warranty-related inquiries. Their support team is available by phone and email, offering a structured process to help guide customers through setup, operation, and any service requests that may arise over time.

Ongoing support is available for maintenance, troubleshooting, and general assistance, with a focus on helping customers get consistent, long-term use from their system. For returns or service-related needs, Ceragem maintains a clearly defined process to ensure requests are handled efficiently and with clear communication throughout.

For setup/assembly guidance and operation please refer to the Ceragem Master S4 User Manual.

Please refer to the Ceragem Master S4 User Manual included in your delivery for product related safety information.

For important health and safety information, please review SanaVi's Medical & Safety Disclaimer Page before using this equipment.

By purchasing or using products distributed by SanaVi Health Systems LLC, customers acknowledge that they have read and understood this Medical & Safety Disclaimer and agree to use all equipment responsibly and in accordance with Manufacturer guidance.

What is the Ceragem Master S4 thermal massage lounger?

The Ceragem Master S4 thermal massage lounger is a convertible home wellness system that combines automated spinal scanning, heated massage rollers, and abdominal thermal massage. Powered by Ceragem's third-generation CeraCore engine, it offers 12 massage modes and transforms from a full-length massage surface into a cushioned ottoman-style furniture piece for convenient everyday use.

How does the Ceragem Master S4 work?

The Ceragem Master S4 works by scanning the length and curvature of the user's spine before guiding heated massage rollers along the back. Its third-generation CeraCore engine coordinates spinal massage with adjustable thermal settings and nine intensity levels. Users can choose from seven automatic programs and five manual modes to personalize their massage experience.

What are the benefits of the Ceragem Master S4?

The Ceragem Master S4 offers personalized spinal massage, heat-assisted muscle relaxation, and targeted comfort for everyday back stiffness and tension. Its heated abdominal projector provides additional warmth and gentle vibration, while the convertible ottoman design makes regular home massage more convenient without requiring permanent floor space for a full-length massage bed.

Does Ceragem thermal massage really work?

Ceragem thermal massage combines mechanical pressure and localized heat, two approaches commonly used to promote relaxation and temporarily ease everyday muscle tension. Individual experiences vary depending on comfort preferences, physical condition, and massage settings. The Ceragem Master S4 provides adjustable heat and massage intensity, allowing users to tailor sessions rather than relying on a single preset experience.

Is the Ceragem Master S4 safe, and are there side effects?

The Ceragem Master S4 includes adjustable heat and massage intensity settings, but thermal massage may not be suitable for everyone. Excessive heat or pressure can cause discomfort, skin irritation, or soreness. Individuals who are pregnant, have implanted medical devices, reduced heat sensitivity, or significant medical conditions should consult a qualified healthcare professional and review the manufacturer's safety instructions before use.

How is the Ceragem Master S4 different from the Ceragem Master V6?

The Ceragem Master S4 is a compact, convertible thermal massage lounger with 12 massage modes and an ottoman-style folded configuration. The Ceragem Master V6 is a larger thermal massage bed offering 22 massage modes, integrated air-cell leg compression, and a heated sofa-style configuration. Both provide spinal scanning and heated massage, but their designs and additional capabilities differ.

How does the Ceragem Master S4 convert from an ottoman into a massage lounger?

The Ceragem Master S4 converts from a cushioned ottoman-style furniture piece into a full-length thermal massage lounger by unfolding and arranging its padded sections into the extended massage configuration. It measures approximately 52 inches long when folded and 84 inches when extended, allowing owners to maintain a smaller footprint between massage sessions while retaining a dedicated massage surface.

What should buyers know before purchasing the Ceragem Master S4?

Before purchasing the Ceragem Master S4, buyers should consider available floor space, electrical access, personal comfort preferences, and the system's thermal massage capabilities. The S4 includes a 3-year manufacturer warranty with 1 year of parts and labor followed by 2 years of parts-only coverage. An optional $349 extension increases coverage to 5 years of parts and 3 years of labor.

For proper setup, operation, and ongoing use, please refer to the Ceragem Master S4 User Manual included with your unit. The manual provides step-by-step guidance on installation, program selection, safety considerations, and recommended usage to help ensure consistent and appropriate performance over time.

To maintain proper function and appearance, Ceragem units should be cleaned using a soft, dry cloth and kept in a dry indoor environment. Do not use water, sprays, alcohol, or abrasive cleaners on the unit, as these may damage surfaces or internal components. Always unplug the unit before cleaning, avoid handling with wet hands, and limit exposure to direct sunlight to help prevent discoloration over time.

For complete maintenance instructions and care guidelines, please refer to the Ceragem User Manual included with your unit.

Free shipping is included on all Ceragem orders delivered within the lower 48 U.S. states. Orders typically have a fulfillment time of 1–2 business days, followed by an estimated transit time of 5–20 business days, depending on delivery location. Ceragem does not ship to Alaska, Hawaii, U.S. territories, or AA/AE/AP military addresses.

Once your order has been processed, tracking information is provided and a delivery appointment is scheduled directly with the customer. Deliveries are coordinated on business days, and timing may vary based on regional logistics, weather conditions, or holiday schedules.

Ceragem coordinates delivery through a structured logistics process to ensure accurate placement and scheduling. For the most current delivery timelines or questions regarding your order, Ceragem’s support team provides ongoing communication and updates throughout the delivery process, or you can contact SanaVi Health Systems for order updates.

• Orders are typically fulfilled within 1–2 business days
• Most orders are delivered within approximately 10–12 business days from the date of purchase
• Delivery timing may vary by region, with some areas receiving delivery sooner
• Tracking information is provided once your order has been processed
• A delivery appointment is scheduled directly with you prior to arrival
• Deliveries are coordinated on business days (Monday–Friday)
• Delivery timelines may be affected by weather, holidays, or regional logistics
• A delivery signature may be required upon arrival.
• For complete information about shipping, delivery, freight inspection, and damage reporting, please review our Shipping, Delivery & Damage page.

Fulfilled by Ceragem Authorized Installation Partners

Ceragem White Glove Setup & Placement is offered as an optional add-on service for Ceragem thermal massage beds and chairs following standard delivery. This service is fulfilled through Ceragem’s authorized installation partners and is designed to provide a smooth, fully prepared in-home setup experience.

These optional services can be selected in the Enhance Your System section located adjacent to the Add to Cart button.

While delivery of your Ceragem system is included with your purchase, this service focuses on what happens after your unit arrives. Ceragem systems are substantial in both size and precision, and Ceragem specifically recommends this service for all Pause models and the Master V7 and Master V9 models due to their weight and structure, although it is not required.

Through this service, your unit is carefully positioned in the room of your choice with attention to layout, access, and usability. Authorized installation partners will complete any required assembly and ensure the system is properly set in place for immediate use. Once setup is complete, all packaging materials and shipping debris are removed, leaving your space clean and ready.

All setup and installation services are performed by Ceragem’s authorized third-party partners.

This service is available for a flat rate of $200 per unit and can be added to your order using the available options located near the Add to Cart button.

For detailed operation and usage guidance, please refer to the Ceragem User Manual included with your unit.

We offer flexible financing through Shop Pay Installments in partnership with Affirm. To explore available payment plans, simply click the “Check your purchasing power” link below the Shop Pay logo which is located below the "Add To Cart" button, or select the “Buy with Shop” button. Available installment options will appear during checkout based on eligibility.

Additionally, if you choose PayPal at checkout, you may also access PayPal’s Buy Now, Pay Later options directly through PayPal. After selecting PayPal as your payment method, their available installment plans will be presented within the PayPal checkout environment.

Financing availability and terms are determined by the respective provider and subject to their eligibility approval.

For more details please see our Payments & Financing Page.

This product is governed by the Ceragem-specific return terms below. Review the current SanaVi Returns & Cancellations Policy prior to purchase for complete return eligibility, fees, conditions, and instructions.

• Return window: 14 days from delivery
• Condition: Gently used; damaged products, missing parts, or signs of abuse may result in refusal or additional restocking charges
• Returns: Accepted for both defective and non-defective products
• Return label & return shipping costs: Customer responsibility
• Restocking fee: 20% of the original product purchase price
• Exchanges: Not accepted
• Refund processing: Within 21 days
• Promotional items: Promotional items must be returned in original condition and packaging; retained or unreturned promotional items may have their full retail value deducted from the refund
• Cancellations: Customer-requested cancellations are subject to the applicable Ceragem manufacturer cancellation fee after the order has been placed

Ceragem is a global wellness technology company focused on integrating thermal therapy, acupressure-style massage, and automated systems into everyday home use. Founded in South Korea in 1998, Ceragem has expanded into more than 70 countries with thousands of global experience centers, building a reputation around spinal-focused recovery, circulation support, and full-body wellness solutions designed for the home.

Ceragem’s philosophy centers on the idea that “wellness begins at home,” with a mission to redefine how individuals build sustainable health habits through accessible, technology-driven systems. Their approach combines proprietary thermal engineering, ergonomic spinal analysis, and automated massage technologies into cohesive, repeatable experiences. Rather than offering single-function devices, Ceragem develops integrated wellness systems designed to support multiple aspects of daily well-being—including relaxation, circulation, and recovery—within a single platform.

For additional product details and a full overview of Ceragem’s design and technology, you may review the official Ceragem Company Brochure.

We make every reasonable effort to keep product information accurate. Because some products are updated or fulfilled directly by the manufacturer, specifications, included components, packaging, images, or minor design details may change without notice. If a material change affects an order, SanaVi will review the matter in good faith and work toward a reasonable resolution.

For more information, please see the Manufacturer Product Updates & Specification Changes section of our Terms of Service.

Medical and Safety Warnings:

This system is designed for general wellness and at-home use. Individuals with medical conditions, implanted devices, or specific health concerns should consult a qualified healthcare professional prior to use. Discontinue use if you experience discomfort, dizziness, or pain during operation.

Please follow all instructions provided in the Ceragem User Manual for safe setup and use. For additional guidance, refer to SanaVi’s Medical & Safety Disclaimer page.

*** For important health and safety information, please review SanaVi's Medical & Safety Disclaimer Page before using this equipment.

Need help choosing the right system? Read our Massage Chair & Bed Systems Buying Guide for key comparison points, placement considerations, and practical buying guidance.

If you’d like to better understand how Massage Therapy Systems work, SanaVi Health Systems has developed a dedicated education section focused on their underlying mechanisms, application, and real-world use. This includes foundational overviews of spinal-focused massage, thermal integration, and compression-based systems, along with guidance on how these technologies are incorporated into both home and professional wellness environments.

For broader wellness education, visit the SanaVi Journal Learning Center.