Typically, you’ll have to remove the mattress completely to put the system in place. There’s usually a center anchor and 4 straps that lead to each corner. Pull these taut and replace the mattress on top.
When using rope, keep in mind that it’s always better to have too much than to not have enough. While you can attach two ropes together to extend them, that just complicates things. It’s much easier just to have rope the length you need to start with. If you’re using an under-the-bed system, you don’t have to do this—the straps are adjustable. [3] X Research source
Zip snare knots work great because they don’t slip or collapse once they’re in place, so you can struggle or pull against them all you want and not have to worry about pinching a nerve or cutting off your circulation. [5] X Research source
Don’t have secure bedposts? Use a simple overhand knot to tie 2 ropes together and run them under the top of the mattress so that the ends are sticking out. Do the same thing on the bottom. [7] X Research source
This does require a bit of flexibility, but if you can touch your toes with your legs spread out, you shouldn’t have any problems.
If you’re using rope, be careful not to cinch it too tight! Remember, you should be able to easily slip 2 fingers between the rope and your skin. [10] X Research source
If the person who’s going to find you isn’t within shouting distance, make sure they’re only a minute or two from opening the door before you restrain your last arm. If you end up restrained and have to wait too long, it could ruin your mood (and your scene).
Make sure the key is in a spot where it’s not going to get lost! This is especially important if struggle is part of your scene. You don’t want to accidentally knock the key on the floor or have it fall under something and get lost.
