XPS 13 7390 2-in-1, waking from sleep automatically

My laptop is waking from sleep on its own and draining a huge amount of battery. According to "powercfg /sleepstudy", the main causes are "Intel(R) PCI Express Root Port #9 - 34B0 (\_SB.PCI0.RP09)" and "(Intel(R) PCI Express Root Port #16 - 34B7 (\_SB.PCI0.RP16)". I've tried looking in the device manager and power settings for anything to fix this and haven't found anything. I've updated all drivers, from both Dell SupportAssist and Windows Update, which didn't help. Any suggested fixes?

Update =  It's been working since I reset.