[Skeever]

I've heard of this happening. They find a perfect nesting spot outside the cage. I don't know what size cage you have or anything, but - and this is extreme- you might want to reorganize his cage so it gives him things to set up again and places to resort. And keep him away for a while from access to the 'best' spot under the bed. Maybe even take him out in another room for a while?

In short, distract him from his favorite space. If the cage is too small, cramped, too open for him, he may want another space. Bad luck that he found one, lol.....with a bit of reorganizing his cage, he may settle into something he likes. Once in a while their cages get a bit of reshuffle if they seem bored with it. Not everything, but adding a house, or toy, removing and replacing one.....moving things to areas they seem to like. And notice when they reject a change. Like toppling over a house and moving it to a different place.....