the solution is simple, but it is complicated by the apartment living. however, you and everybody who can hear her will get more sleep if you let her cry it out. Not just at night, but also for naps during the day. Let the neighbors know what you are doing, leave a note in the lobby and explain that she will be crying a lot for a day, but then she will be able to go down without crying. Stop doing those things that prepare her for sleep time, i.e. rocking, back rubbing, waiting until she actually falls asleep. Even though she's only 11 mos tell her, and yourself at the same time, in a soft voice that now she is going to learn to go to sleep by herself. Then, at nap time, just lay her down, walk out of the room as confidently as you can, and set a timer or check your watch for 5 min to pass when she starts crying. Then duck your head in and at the most say softly, "It's time to sleep" or say nothing at all. Now wait 10 minutes. If she's still crying, duck in your head and hopefully she will see you and begin to really cry. This will wear her out. Set the timer for 15 min, and duck your head in again. Then just let it go. If she starts tosleep but is doing that little gasping thing, like she is softly crying, in her sleep, don't worry about it. She will most likely be asleep now, and you may have to repeat this sheme for her next nap or bedtime. You may have to repeat it if she starts waking up in the middle of the night again at some time in the future. And you will have to repeat it if she gets sick and you care for her through the night. If this does not work in 2 days time, write us again, or tell your doctor. Also, keep track of how much time she actually cries and you will see it decreasing and can say this to any neighbor who complains.