Sei Mio-The Bed-Spreader-Under The Mattress Restraint System waterproof while the side zip means

while the side zip means you can actually get them on and off without spending half an hour on the laces

The base is adapted from Oxballs' cocksling design with tighter openings that keep it secure during play

The silicone cup creates a seal around your clit

and just as easy to release when you need to

Sei Mio-The Bed-Spreader-Under The Mattress Restraint System waterproof while the side zip meansThis four point restraint system slips under your mattress and stays put without any fittings or modifications to your bed. Adjustable straps work with any bed size, from single to super king, and the whole setup stores flat when you're done. Padded cuffs fasten with quick release velcro, so you can get in and out fast. The cuffs are removable, which gives you options swap them out, use them separately, or reconfigure the setup. A central carabiner