The past few days have been really hard on us. Our daughter won't go to sleep because as soon as we lay her down she sits up and starts screaming. THis is the same LO that has STTN since 12 weeks and was a super fantastic sleeper! I am sure it's separation anxiety but we are exhausted! THe past 2 nights she got up in the middle of the night and as soon as she was rocked back to sleep and laid in her crib she sat up and started screaming. We ended up taking shifts sleeping w/ her on the couch. I know it's a bad habit to start but we're just so exhausted! Any suggestions?