The phrase "sleeps on" can be replaced with several synonyms that describe a similar action. Some of these synonyms include dozes on, slumbers on, snoozes on, and rests on. They all refer to the act of sleeping or resting on a surface for an extended period. These phrases can be used to describe a person who is in a state of relaxation or deep sleep. They may also be used to describe the position of an object, such as a pillow or a mattress. Regardless of the context, using synonyms for "sleeps on" can add depth and variety to your writing while conveying the same meaning.