My 6 month old recently started crawling. Now, the only thing she does when I put her down to crawl, is crawl over to something to try to stand up. Since 7 this morning she has been unable to nap, (it's 5 o'clock in the afternoon) because she recently found out she can stand up in the crib. Every time I put her in, she flips over and goes to the rail and stand up, and stands there crying until I come get her. I've tried rocking her, which gets her to sleep ...but the moment I put her in her crib, she's up. She's refusing to sleep. Now, she's over tired and loopy, and is playing with her toys. I couldnt stand the crying anymore. Does anyone have any suggestions? I'm going insane lol.