I know how the monitors "work"--but how do they sense the babys movement? Does anyone know? I emailed the company directly as I'd like to purchase one but I haven't heard back from them. I'm sure it's safe but I'd like to be positive that we all won't hear in ten years that they are just finding out that these monitors have some long term negative effect on our LO's .Also my crib base is metal, I guess spring based that would mean I need to put a sheet of plywood under the mattress for the sensor pad to sit level??
Thanks paraniod mommy(as my lovely DH puts it) of almost 4 month old---Andrea