Common bed bugs are going to inhabit areas where they have close proximity to a blood meal and can hide between blood meals. This does not mean that they will only live in a mattress or boxspring, but may also live in electronics, behind baseboards, picture frames, etc. Additionally, they may inhabit non-sleeping areas. Bed bugs may be in couches, workplaces, or entertainment places.
Bat Bugs most commonly live in caves or attics where bats are or have been living in plenty. Bat bugs tend to find their way into human living quarters when the host bats abandon their normal roosting area. This is more common in the spring when bats vacate overwintering locations.
As indicated by the name, Chimney swift bugs are common around fireplaces and other areas where birds are likely to nest.