“Bed Rest” (*1/2 out of four) was a dour horror thriller for people who likely need bed-rest about a pregnant woman (Melissa Barrera) at home who starts to wonder if her house is haunted or if the hallucinations and paranoia she is going through is all in her mind. Suspenseless and sluggish for most of its running time until it finally gets going in the final third but even then is simply a collection of haunted house horror-movie cliches. Barrera tries in the lead but is unable to enliven or enrich material.