I would give this 5 stars if it really did fit all size beds. I have a full size bed and it just barely fits over every edge. I haven't tried it on a queen or king. But I'm sure the queen might be okay if you really don't mind your arms and legs to stretch and not move at all. the king size would for sure not fit at all. I like how it fits my full size bed though. I'd say its perfect for my bed or any bed smaller. I can't vouch for a queen size though. I liked tightening the straps on my full size so i couldn't reach my face with my arms. I'd say this product is well made and can hold up. I like it a lot. :)When I ordered this, I was a little skeptical about the velcro restraints. I didn't think they would hold that well. I was wrong! This restraint system is easy to set up and easy to use. The velcro restraints are very strong and hold me in place no matter how much I may or may not struggle. I love it! The restraints are also comfortable on the wrists and ankles.The only issue I have is that when I struggle, the straps tends to gradually move under the mattress, so just make sure you re-adjust the straps to your liking after each use.All in all, I love it and I couldn't be happier with it. Two thumbs up.A great product! :) Worked well on my boyfriend's full-sized bed on the both of us. Straps are comfortable and surprisingly strong for velcro. I was able to pop the cuff off of the strap once though because it was very difficult to stay still (and quiet for that matter) when my boyfriend was playing with me. But that was a simple fix that involved relacing the strap into the cuff and checking the loop through it next time. Blindfold was a little flimsy though, so we don't bother with it.I was very pleased with this product. The set up is easy, and it worked surprisingly well, considering the price. Making it tight is key, or it's easy to escape. At the same time, though, it's not impossible to wriggle out of in case of problems or emergencies. I don't think it will fit every bed, though. I tried it on a full size bed, and it was just right. I think it would be too small for a Queen size or larger. Still, though, I like the product and was quite pleased.I thought this would be a fun and sexy gift for a friend and chose it carefully. What a letdown when it arrived in a clear ziplock bag with no illustrated box or any box at all, no instructions, no label. It looked like some generic black canvas straps with no clear purpose. Far from fun or sexy looking,it was hard to even decipher the intended use for the straps. I was there when the gift was delivered and was embarrassed because it looked like a cheap gift from the dollar store or hardware store without a box or any type of label. And the person the gift was intended for was just puzzled and asked me what it was, instead of it being the intended fun and slightly shocking surprise. If you are interested in this item, find another seller who packages it nicely or at least correctly. I sure wish I had just bought this from Spencers in the mall. My sexy gift fell flat and looked like nothing special the way it was shipped.Hides under the mattress easily for unwanted eyes. Ready to go when you are. Restrains nicely so your partner can do as they please. We also purchased the Ostrich feather purple tickler. I wrote a review on that first but Amazon would not post that one. It is very cheap. 1 feather on a stick. Better off to go buy a feather duster.i am normally a sub and for that i have a 2x4 frame under my mattress that has chain attachments and i have wrist and ankle restraints from Mr. S. Leather. i bought this intending to travel with it.However, a first time sub came over and i didn't want to scare Him so i brought this out and used the velcro restraints on him and let him play as opposed to getting scared in my padlocking leather restraints. it was perfect. He was able to gain a comfort level that was right for him and still keep playing.The product is actually quite nicely made and appears to be of good value.That is until you try to use it with a King or Queen size bed. On a king size the the 4 straps barely reach the top of the mattress and on a queen size you have 6 inches to spare. Unless you plan to restrain a 6'6"+ person, you will likely not get anywhere with this product and as such it is a complete waste of money.I suspect that on a full size mattress it would work well.If each strap had been 2 feet longer I would have rated it with 5-star, but not being able to use it I will give it a generous 2 stars.fits below a super king mattress just fine. need to fiddle with the straps to avoid them coming loose but getting lots of fun from themperfectMe encanta