Overall, Sleepover isn't a drop dead amazing movie. It was simply OK. The actors weren't that great, and the plot was sort of unrealistic.
I would rank Sleepover somewhere between PG and PG-13. the things that really shocked me is that a 14 year old girl sneaks into a club with instructions to get a guy to buy her a drink. This drink just happens to have a racy name, as aforementioned ... Another thing that shocked me is the particular "shower scene". She's seen sneaking into a guy's shower (He's not in it), and this scene implies nudity - only shows neck to the lower back and nothing else- but before he hops in the shower he hears a noise, and goes out of the bathroom - with a towel on- to check it out, where she promptly steals his boxers (note: everything she does is because some girls made a list for her and her friends to follow. after her mother told her not to leave the house) There's one use of the H word and some making out, references to "hooking up", and omigod but no actual cuss words. Another thing is that she's disrespectful to her mother a lot. All in all, it's an OK movie that's fine for mature pre-teens and teens, but not my first pick =)