My baby has been awake for 5 hours. Before this she had a 3 hour nap and was awake for 4 hours before that. I have spent a total of 8 hours today trying to get her to sleep and I have tried absolutely everything I could possibly think of short of crying it out (she's only 3.5 weeks old). She's obviously way overtired at this point and I am at my wits end. Swaddling, swinging, comfort nursing, cluster feeding, rocking, car ride, etc. has been done. I have tried it all and I just don't know what else to do. I am hoping for someone to throw out an idea that I haven't tried on getting this little girl to sleep. Please?