It's common for babies to develop sleep associations. Your baby might associate falling asleep with his grandmother's lap due to routine or comfort. To help him sleep in your lap, try these: * Create a consistent sleep routine: Before sleep, do calming activities like a warm bath, gentle massage, or quiet storytime. * Gradual transition: Start by having him in your lap when he's drowsy but not fully asleep. If he stirs, gently pat or hum to soothe him. * Introduce your scent: You could try wearing a shirt for a while and then placing it near him when you're trying to get him to sleep in your lap, so he associates your scent with comfort. * Patience and consistency: It might take time, so be patient and consistent with your efforts.