I fear we’ve spawned some kind of marsupial. M.’s latest trick is to only be able to sleep when lying on mommy, daddy, or really any warm body. We had friends over Monday night who happened to bring their three kids. All five of our visitors held M., and S. held her the rest of the time they were here. She was out the entire time. We put her down when our guests left so we could clean up, immediate tears. M. slept nearly all night, as long as S. was holding her. She slept all day today, as long as I was holding her. I think she expects one…