Hey, Right im havin a sleepover and rockclimbing party!!!! If i were you and you wanted a sleepover party i would have somthing else aswell so you can have your mates round most of the day and it really gets the party started!!! On the way to rockclimbing id play loads of funky tunes!!! And bring mobiles aswell as u can phone lots of people and play pranks on other mates that wernt invited and smelly boys!!! When getting there you would go and start rockclimbing!! When finished maybe go out for a bite to eat or you could do that at home!!! When home you could do loads of games anddares would really be fun!!! As the night gets on you can start watching movies i reccommend not another teen movie it's hilarious and us girls just love it!!! If someone drops off then you can get make up and cover there face!!!And wrap them up in toilet paper!!! You can set an alarm for midnight and then at midnight t=you can have a midnight feast!!! It really is an great party if u try it i guarenty you will enjoy!! Have a REAL BIG BASH!!! HAPPY BIRTHDAY!!!