A mountable holder specifically for the Mattress Firm brand movable bed foundation. Should be a fairly snug fit and the back of the holster is angled so that it can be attached to a wall or side table with command strips without the top of the remote hitting the wall.
Uploaded version is without the added text from the picture, I can add the fusion 360 file for anyone interested in modifying it for themselves.
The author marked this model as their own original creation.