SEI MIO The Bed Spreader Under Mattress Restraint System

Turn your bed into a full-body playground with the SEI MIO The Bed Spreader Under Mattress Restraint System. This fully adjustable 4-way restraint setup slips beneath the mattress and secures wrists and ankles for comfortable, controlled bondage play right from the bedroom.

Adjustable straps make it easy to tighten, loosen, and customize the fit for different beds and body types, while padded cuffs help keep restraint play more comfortable during teasing, sensory play, and power-exchange scenes. Quick-release hook-and-loop fastenings allow for simple setup, secure wear, and fast removal when needed.

Designed to fit single, double, king, and super king beds, The Bed Spreader is easy to install, discreet to store, and versatile enough for more than one style of play. Removable cuffs, adjustable straps, and a central carabiner design create bonus positioning options, giving adventurous couples more ways to explore control, anticipation, and connection.

Features

• Under-mattress 4-way restraint system for wrist and ankle bondage
• Transforms most beds into a temporary restraint setup
• Adjustable straps fit single, double, king, and super king beds
• Padded cuffs provide added comfort during restraint play
• Quick and easy release hook-and-loop fastening
• Removable cuffs offer flexible use and positioning options
• Central carabiner design and removable straps allow bonus positions
• Easy to fit with no permanent installation required
• Discreet to remove and store between sessions
• Black nylon construction for a sleek bondage-inspired look
• Great for teasing, sensory play, power exchange, and couples exploration
• Kit/set format for a complete bed restraint experience

How to Use

• Discuss boundaries, safe words, nonverbal signals, and comfort levels before play begins.
• Slide the restraint straps beneath the mattress and adjust them to fit the bed securely.
• Fasten the padded cuffs around the wrists and ankles so they are snug but not painful, restrictive, or cutting off circulation.
• Use the adjustable straps and central carabiner design to customize positioning as desired.
• Make sure the restrained partner is comfortably supported and able to communicate clearly.
• Check cuffs, straps, and positioning often during play.
• Remove immediately if there is pain, numbness, tingling, swelling, discoloration, circulation restriction, emotional distress, or discomfort.
• Never leave a restrained partner unattended.

Care Instructions

• Wipe straps, cuffs, and hardware clean with a damp cloth and mild soap as needed.
• Do not soak or machine wash unless the manufacturer instructions specifically allow it.
• Allow all pieces to air dry completely before storing.
• Inspect cuffs, straps, stitching, hook-and-loop closures, carabiner, and connection points before each use.
• Do not use if any part appears torn, frayed, loose, weakened, rusted, bent, or damaged.
• Store clean and dry in a cool place away from direct heat, moisture, and sharp objects.

What’s Included

• Under-mattress restraint system
• Padded wrist cuffs
• Padded ankle cuffs
• Adjustable straps
• Central carabiner design with removable straps

Specifications

• Brand: Creative Conceptions
• Collection: SEI MIO
• Product Type: Under mattress restraint system
• Category: Bedroom Accessories, Kits and Sets, Restraints
• Color: Black
• Material: Nylon
• Design: Fully adjustable 4-way bed restraint system
• Bed Compatibility: Single, double, king, and super king beds
• Cuffs: Padded removable wrist and ankle cuffs
• Fastening: Quick-release hook-and-loop closure
• Positioning Feature: Central carabiner design with removable straps
• Installation: Temporary under-mattress setup with no permanent fixtures required
• Use: Bed restraint, teasing, sensory play, bondage, power exchange, and couples exploration