Yes, I think you are crediting her with cognitive skills way beyond her. This is not uncommon, the night time sleeper who does not nap. One thought, is the house so much quieter at night? Try taking the phone off the hook and making the room dark and not making any noise until she falls asleep. She probably has a biological rhythm that contributes to this, but that can be modified. She must learn to nap for you to resume your adult life and not cater to her all day long. When she is 4 mos old you can begin to let her cry, I use the 5-10-15 min approach and most babies learn to nap with that. Actually, putting her in the crib for naps might help her to sleep. Also, when she begins (and she will begin) to wake up at night when you are hoping she will sleep through, or goes back to waking up at night after sleeping through the night for some weeks, you just train her at night by letting her cry. She will not be traumatized by this and will benefit from the health advantages of getting enough sleep. Another thought, I often say that I wish I could hold a baby and rock it to sleep for as long as they are little and cuddly, but it is just a romantic fantasy. Sooner or later, baby will not fall asleep in your arms, in fact, it will keep her awake. She will have to fall asleep on her own in her crib, you will have to put her down while she is awake and forgo what you do now to settle her down. Enjoy this time when she falls asleep in your arms or as you rub her back, or whatever, but be prepared for its passing.