SEI MIO The Bedspreader Under the Mattress Restraint System

Turn your bed into the ultimate pleasure playground with the Sei Mio The Bed Spreader Under-the-Mattress Restraint System in sleek black. Designed for easy setup and endless exploration, this fully adjustable 4-way restraint system transforms any bed into a sensual escape. Simply slide the straps under your mattress, fasten the soft, padded cuffs around your partner’s wrists and ankles, and let the excitement begin. With adjustable straps that fit all mattress sizes—from Single to Super King—you can customize the tension to your liking, whether you prefer gentle restraint or complete restriction. The quick-release Velcro fastening ensures both safety and convenience, while removable cuffs allow for versatile positioning and play. The system’s central carabiner and detachable straps even open up bonus restraint possibilities beyond the bed. Key Features: Under-the-mattress design for discreet, easy setup Adjustable straps fit all bed sizes (Single, Double, King, Super King) Soft, pa