Since last update, phone rebooting several times a day

Not here. I've had three phones on that update and no random reboots yet. My latest just arrived today so it's too soon to make a final call on this one.
 
Yup, but never while I’m using it. Only when it’s in my pocket or something. The only way I can tell is when I go to unlock it, it asks for my password and then takes a couple seconds to fully boot.

Yes. For me it's while it's been sitting on my desk.
 
I bought mine a week ago. I downloaded all updates immediately. Didn't have a random reboot until two days ago. Yesterday I had 4 random reboots while I was doing simple tasks like scrolling through Facebook, and and reading RSS feeds. Today I've had 8! What the heck is going on? Did I get a bad phone? I was all excited that I wouldn't have to return this phone, but now I'm second guessing myself....
 
I bought mine a week ago. I downloaded all updates immediately. Didn't have a random reboot until two days ago. Yesterday I had 4 random reboots while I was doing simple tasks like scrolling through Facebook, and and reading RSS feeds. Today I've had 8! What the heck is going on? Did I get a bad phone? I was all excited that I wouldn't have to return this phone, but now I'm second guessing myself....
Probably the Russian trolls on Facebook... I dont have social media so no reboots here.. super stable 6hours of screen time and off charger for 17hours.. battery at 27%
 
Happened to me again just now. picked up my phone (from an idle state with no recent apps) and selected Tapatalk - it didn't even fully open before the phone started rebooting.
 
Any of you guys do a clean install? I just got this phone a few days ago so all updates were done back to back and when i unlocked bootloader it did a wipe.. no issues at all
 
Yep, with new phones I always set up as new and do the updates back to back before anything else...
 
Yup.. only when it's plugged in over night.. if I leave it off the charger it seems to be fine..
Pretty sure it's software related.. ever since the NMJ32F build..
 
I have the latest build and no problems here. My guess would be some app in the background isn't playing nice.
 
Mine hasn't rebooted on its own, but today I was taking a walk in 10 degree weather and the phone just shut down and wouldn't power back on. I mean, I get that it's cold, but that seems like something that would have happened in 2006, not 2017. Regardless, it's back on now and everything seems fine.