My 19-month-old granddaughter's sleeping habits change when she is at our home. Any suggestions on getting her to sleep?

Changes in routine can affect sleep patterns for children and adults, so that could be what is happening here. Of course, infants can also have irregular sleeping patterns. That said, I can think of a few things you may want to try. First, the baby should be sleeping in a crib, and ideally it should be identical to the one at her parents’ home. Consider furnishing the crib with the same toys and the same type of blanket she’s used to. It’s also a good idea to have her room be a similar temperature to the room she sleeps in at home. Are there blackout shades in the room? Perhaps your granddaughters’ exposure to sunlight may be an early wake up call for her. Also, be aware of any changes in her feeding times, since these changes may also be a factor influencing her sleep patterns. Sweet dreams!