Hi L.,
I hear you -- vacations tend to mess up the kids sleep habits. I heartily second the post below about the "Healthy Sleep Habits, Happy Child" book. It's by Dr. Marc Weissman, and even if you have to have it overnighted to you, it will be well worth it. As a mom of 6, I can't tell you how many times it has helped me. He takes you through step by step how to train (or retrain) your child, at whatever age and stage they are at. Basically, this is his approach: Develop a comforting habit/ritual for soothing (ie. rocking, nursing, a "blankie," and use it consistently before sleep time.) Then, especially if your daughter didn''t sleep well at night, put her down for her first nap earlier than you normally would, to catch her before she's too exhausted. If she wakes up at 6, put her down for a nap around 8am, or even 7:30. Leave her completely alone to learn to fall asleep. Leave her for an hour, whether she sleeps or not. If she's still crying by then, go and soothe her. If she seems completely awake, get her up. If she's exhausted from crying, and falling asleep in your arms, you can put her back down and try again. If the nap is successful (an hour or two, but not much longer or it messes with the second nap) put her down for second nap 2-3 hours after the first ends -- same process. If the first nap wasn't successful, the second nap will need to happen earlier, and the if the second nap isn't successful, you can try a third in the late afternoon, just making sure it doesn't last longer than 1-1 1/2 hours, or it will mess up nighttime sleep. Also, earlier bedtimes, as early as 5 or 6 if naps haven't been successful, helps get them back on track. There is no time limit to letting them cry at night -- once they're down, they're down. Otherwise, they learn to cry until your predetermined time limit. The first couple of nights this can be really be difficult, but after that it's always worked for me, with the result of a well-rested child, and mom. The exception of going to them at night is if they still get up for a night feeding, particularly with an earlier bedtime. You would just get them up, feed and change, but maintain silence and darkness so they do not reach full wakefulness. But only respond if you know the baby will be hungry after the interval that has passed. I know this sounds harsh, but you know your baby's needs are being met, and you will be helping her learn to soothe herself to sleep. I always hesitate to tell anyone the process if they don't have the book, because he can explain all this so much better, but I know what it's like to be desperate. Still, I would recommend getting the book, b/c it helps so much to be consistent when you can refer back to it to reassure yourself you're doing it right, and doing the right thing for your child. Good luck. Hang in there.