Edge Extreme Under The Bed Restraint System By Sportsheets

Restraining your partner across the bed can feel complicated and temporary. The Sportsheets EDGE Extreme transforms any mattress into a secure bondage platform with six connection points, permanent installation, and instant readiness for power exchange play.

What it is

The Sportsheets EDGE Extreme Under the Bed Restraint System is a comprehensive bondage platform that anchors your submissive to the bed frame using six strategically positioned connection points. Built from polypropylene straps reinforced with steel and POM plastic components, it slides under your mattress and secures with push clips that engage with a satisfying click. Installation takes minutes—no tools, no permanent damage to furniture. Once in place, it remains ready for immediate use whenever you need it.

Unlike temporary bondage solutions, this system transforms your bed into a dedicated restraint dungeon. The adjustable middle strap slides freely along the mattress length, giving you precise control over positioning. You can secure wrists and ankles for basic restraint, or attach cuffs to all six points simultaneously for complete immobilization. See the full BDSM Australia range of Restraints to explore complementary equipment that pairs with this system.

Key features

• Six connection points: Multiple push-clip attachment locations allow simultaneous restraint of wrists, ankles, neck, and torso for comprehensive control and immobilization.
• Durable construction: Polypropylene straps combined with steel reinforcement and POM plastic components withstand intense play sessions and extended restraint periods.
• Adjustable positioning: The middle strap slides up and down your mattress, allowing you to reposition your submissive at different angles and heights during play.
• Universal fit: Works with any standard mattress size and can also loop around door frames for standing restraint scenarios beyond traditional bed bondage.
• Quick installation: Slides under your mattress in minutes without tools or damage to furniture; remains permanently installed and ready for immediate use.

Specifications

• Strap dimensions: Four corner straps fit under standard mattresses up to queen size; adjustable middle strap provides six to twelve inches of positioning range along mattress length.
• Material composition: Fifty-eight percent polypropylene, thirty percent steel reinforcement, twelve percent POM plastic; all body-safe materials suitable for extended skin contact.
• Connection system: Six push-clip attachment points rated for sustained tension; compatible with standard bondage cuffs, collars, and restraint accessories.
• Special features: Adjustable middle strap slides freely; works under mattresses and around door frames; limited lifetime warranty included.
• Package contents: Complete restraint system with six connection points, push clips, adjustable middle strap, and installation instructions.

How to use a restraints

Begin by sliding all four corner straps under your mattress, positioning one at each corner. Secure the adjustable middle strap underneath as well, at a location that suits your intended scene. Attach bondage cuffs to your submissive's wrists and ankles, then clip them to the connection points. The push clips engage with a satisfying click, ensuring secure restraint. Adjust the middle strap to your desired position along the mattress length. Your submissive is now spread and immobilized, exposed and completely under your control.

For advanced scenes, attach cuffs to all six points simultaneously, creating complete immobilization where movement becomes impossible. The adjustable middle strap allows you to position your submissive at different heights and angles, creating varied positions for different types of play. See the full BDSM Australia range of Bondage Cuffs to find compatible restraint equipment that pairs seamlessly with this system's connection points.

Care and storage

Clean the polypropylene straps with warm soapy water and dry thoroughly after each use. Wipe steel components dry to prevent corrosion. Store the system flat under your mattress or in a cool, dry location away from direct sunlight. Water-based lubricants are compatible with all materials. Avoid harsh chemicals that degrade polypropylene. Inspect push clips regularly for wear and replace if necessary to maintain secure restraint.

Learn more

Understanding restraint technique and safety practices deepens your scenes and builds trust with your submissive. Read our guide on Bondage Play Restraints for detailed information on positioning, safety protocols, and psychological dynamics of restraint play. This system works best when paired with knowledge and communication.

Mistress Athena's training notes

By Mistress Athena — professional dominant and kink educator, sole instructor behind BDSM Australia's library of training videos. Read her full bio →

I've used the Sportsheets EDGE Extreme system for three years, and it remains my most reliable tool for breaking in new submissives. The moment I slide those straps under the mattress, my submissives understand they're entering my domain completely. Within minutes, they're spread and immobilized, unable to escape or resist. That initial panic when they feel the push clips lock into place—that's when their real training begins.

Six connection points give me incredible flexibility in how I restrain. I can secure wrists and ankles for basic positions, or I can add collar attachments and torso restraints for complete control. My most effective technique involves extended restraint sessions where I leave my submissive in position for hours, building psychological submission through enforced helplessness. The adjustable middle strap allows me to position them at different angles, sometimes with their head hanging off the bed, sometimes with their hips elevated for access.

I combine this system with sensory deprivation by blindfolding my submissive, removing their sight while the restraints remove their mobility. The combination creates profound submission. For advanced training, I use the door frame attachment to create standing restraint positions, then transition them to the bed system to show them the difference between positions. This teaches them to appreciate the bed restraint system as a reward compared to harsher standing positions.

The durability means I can use this system intensely without worry. Submissives struggle against these restraints for extended periods, and the system never fails. That reliability gives me confidence to push boundaries further, knowing my equipment will perform perfectly every time.

See this and similar tools in action across my 300+ training videos on the BDSM Australia channel.

How it compares

Why you'll reach for it

Snag the Sportsheets EDGE Extreme Under the Bed Restraint System at BDSM Australia for complete, reliable bed bondage control. Six connection points with push clips provide secure restraint for wrists, ankles, and more. Quick installation transforms any bed into your restraint dungeon. Universal fit works with all mattress sizes, and the adjustable middle strap lets you customize positioning for endless scene variations. Experience total domination and submission with this durable system. Everything for Bondage Under One Roof.