We just set a family rule that screens are off until homework is done, but my 13-year-old argues that she studies better with background music from her tablet. I've read conflicting advice—some experts say any screen time before bed harms sleep, while others claim it's the content that matters, not the device. When you've had to decide something like this for your own kids, did you lean on strict limits or flexible guidelines that adapt to their needs? I'm curious because I feel like I'm guessing more than parenting.