There are several synonyms for the phrase "goes to bed with," which refer to sexual activity or intimacy. Some of these include "sleeps with," "has sex with," "makes love with," "gets intimate with," "shares a bed with," and "is intimate with." Other more euphemistic phrases include "has a nightcap with," "curls up with," or "retires with." It's important to remember that consent and communication are crucial in any sexual encounter, and using respectful language can help create a more positive and safe environment for all involved.