New answers tagged plastic
I assume by "bed base" you are referring to the box spring? Take some long strips of cardboard and staple it to the bottom of the box spring, over top of the fabric covering. Use some double-sided carpet tape or another type of adhesive to secure the strips to the cardboard. This has the added benefit that it's easy to remove and doesn't damage the box ...
If you don't mind it being permanent, 2 part epoxy should work. You just need to figure out a way to keep the strip clamped to the bed until the epoxy sets. (Maybe a 2x4 wedged below the light strip.)
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