When your little one's sick, the last thing you want to do is wake them up for a temperature check. The classic thermometer gets a modern-day upgrade with the FeverFrida Thermonitor—a wireless device that records temps every four seconds, thanks to a tiny Bluetooth monitor and patch placed under the armpit. You can receive an alert straight to your smartphone or tablet when the temperature rises over a preset threshold. This amazing device even stores data for pediatrician visits and reminds you about upcoming medicine doses.