Seventeen-year-old Kylie Jenner isn't wasting any time moving into the $2.7 million Calabasas, CA, mansion she closed on earlier this month. The Keeping Up With the Kardashians star and teenage entrepreneur (she collaborated with sister Kendall on a fashion line for PacSun and shoe and handbag line for Madden Girl, among other ventures) posted a picture to her Instagram account this weekend of her initial unpacking efforts. In the picture, Kylie is standing in her empty living room next to a giant Casper mattress box. The caption reads, "so much work to still be done! IM SO EXCITED. The first thing I'm gonna open are my new @casper mattresses." A mattress might not be the glamorous first purchase you'd imagine Kylie making, but Casper (nicknamed the Warby Parker of mattresses) is getting a lot of buzz, thanks to its innovative shipping system, affordable price, and free trial period. She may be young, but Kylie is already proving herself a wise and thoughtful homeowner!