6 in x 10 ft Rolled Couch Cushion Grip Tape, Hook and Loop Tape with Adhesive to Keep Couch Cushions from Sliding, for Couch, Sofa and Mattress (Black)

It's very sticky, so take care when applying it. Works really well and keeps the couch cushions from sliding off. Would recommend.

This does exactly what it says. However, it now means that I can’t vacuum under the cushions as I can’t move them. When I try, the sticky side tries to come away rather than the Velcro. I am not sure if it would stick back again once lifted. There was plenty on the rolls though so I could always replace after vacuuming.