New price low! Walmart has the Sunbeam Wi-Fi Connected 84" x 72" Electric Blanket (Full, Gray, 2142770) on sale for $25 with free shipping with Walmart+ (30-day trial) or on $35+. Also available in Queen size (90” x 84") for  $26, while the Twin size (84" x 62") goes for $17. 

The Sunbeam mobile app can preheat the blanket and control heat settings. Include auto-off timer (up to 10 hours) and works with Alexa / Google Assisstant. Also includes digital controller. Washer / Dryer safe (after removing cord).