This product is fantastic for people looking to spice up their sex life or for the more intense bondage lover. It fits a variety of shapes, sizes, heights, and is completely adjustable. It's also very discreet when not in use. The restraints are comfortable, lined, and sturdy, even though they are velcro-secured.

I bought my under the bed restraints over five years ago. They've never been replaced, the cuffs are still durable and comfortable.
Easily removed in emergencies, but very tough during the act itself.
There is a velcro strip around a plush material, the restraints are removable from the under the bed system and can act as wrist/ankle cuffs on their own for a more "portable" bondage.
I have big wrists and ankles, but I've also used this one partners with smaller portions. Very conforming to the subject.

The restraint system is great, I love it and still use it frequently. It adjusts to multiple bed sizes, from full size to California king size. There is still enough reach to strap people in around the mattress.
The set up can be a bit labor intensive if you're setting up alone. You have to lift half the mattress, place two of the cuffs out, then run to the other side, repeat, and then adjust the straps to your desired location.

The best part about the whole thing is that since the cuffs clip on to D-rings on the restraint system, you have a portable wrist and ankle cuff set. Cuff your wrists together, your ankles, your wrists to your ankles in a hog tie style... It's so versatile!

It's super easy to care for, I've never had to do any cleaning maintenance.
For "sneaky" storage, all I do is take off the cuffs from the system and tah-dah! No one has noticed yet. Plus, it fits under sheets until you want to use it.

Packaging was pretty standard, plastic clam-shell with a very blatant "Under-the-Bed Restraint System" printed on it and a picture of someone's side as their "restrained" to a bed.
It had simple instructions, but it's very straight forward and very to-the-point over all.

Like I've stated, I've been using the same system for going on five years. It's simple, durable, and comfortable. I've even recommended it to others and used it for a variety of people during play.

Being restrained with your mattress as the factor holding you down puts everything in to a similar perspective. It's my own weight holding me. I felt myself relax in the comfort of the cuffs, the weight of my body being spread eagled and unable to do anything about it. The easy of the velcro was far from my mind at the moment.

I was allowed as much space as my partner would give. The cuffs could be pulled tight against the mattress, or let loose for a little bit of a struggle to ensue. After a few hours, I still was comfortable and the only protesting was in my inability to move of my own volition.

Once the cuffs were release from me, they were stored in a toy box and forgotten until another time. Not one person had commented or noticed the straps, as they were easily covered by sheets until use in the next round.