The best way i figured out is to be bound, spread at your bed. It have to be a single bed so you don't want to get stuck there...
Use four small pieces of rope (or longer if you want to fold them in the middle which i recommend) and tie one of the edges on the corresponding post. It must be a noose at least for one hand! It doesn't matter for your feet, you can tie them any way you like after you created and tested the nooses for your hands.
Then, after you find the right length for your limbs (you don't want to be really streched out to enjoy it!) after testing them out a couple of times, gag yourself (duct tape is better in my opinion, you don't wanna put a ballgag because it might cause you problems) or put a scarf over your eyes so you can't see.
Then, relax and put your hands one by one through the nooses! You don't wanna pull, they'll tighen anyway!
The key for this is to make the nooses short enough for your hands to not be able to reach your mouth to remove your gag, and to maintain a short distance from the post and your good hand, so if you struggle enough and stretch, you can reach the knots on the post and untie them patienly!
Hope i helped you despite i sometimes don't find the right words to describe (english isn't my native languange) - Ask if you didn't understand something
Practice makes perfect, have fun
