My daughter used to sleep 5 hours a night in the first month. For the last month she wakes up every hour, but she isn't hungry. She will go back to sleep if I go into her room for a minute to comfort her (without picking her up), but if I don't go in the crying escalates into panic. This means neither of us are getting more than an hour of sleep at a time and I don't know what to do to get her to stay asleep. I think she wakes herself up because she moves so much. Swaddling does not work, she can kick out of the tightest swaddle (even the special blankets with velcro) and it seems to just make her mad.
Hi Stephanie, I am also having the same problem with my 3.5 mo. old. I see that your post is a few months old now, so hopefully your daughter grew out of this phase. If you are still having trouble, I would recommend swaddling her arms with a Miracle Blanket. We use ours regularly even though my son has outgrown the foot pocket. It has a long swath of fabric that goes around the baby's body, so it's pretty impossible to get out of. It often helps him to go back to sleep if he's more contained. I'm guessing that he's starting the teething process which is why he's waking up so frequently.