How to use GetLastBedPos()

[xoft]

You need to explicitly log the individual values:

local lastBedPos = Player:GetLastBedPos()
LOG(string.format("%s Bed: [%d, %d, %d]", Player:GetName(), lastBedPos.x, lastBedPos.y, lastBedPos.z))

(I prefer using string.format to concatenation, but either should work)