The best part about the Segufix restraint system is how well it secures the torso. Bondage belts are

The best part about the Segufix restraint system is how well it secures the torso. Bondage belts are great, but aren’t nearly as versatile. The large waist belt attaches to four crisscross shoulder restraints that go above and below the shoulder, fitting around the body like a vest. If you add the optional crotch strap (not used here) it is impossible to wiggle out of it, even if it wasn’t securely attached to a cot.

You can adjust the various straps to allow sitting up (for eating or drinking) or rolling from side to side…for comfortable sleeping…or for inserting a plug…or administering an enema…all without any possibility of escape.