Weirdness after sleep, possibly new hardware failure

I have been running CL since 12/5, and occasionally see weird behavior, which could easily be some infant mortality on the new hardware, Lenovo P53. It could also be related to my practice of seldom booting and closing the cover to put it in sleep mode.
This case was using it for a few minutes after opening the lid, and while typing a URL, hitting the return or tab to accept the rest of the .com and the m continued to stream across the link window until I pressed another key. At that point the touchpad would not respond, although the touchpad buttons worked. The red joystick let me navigate to the shutdown. All was fine upon reboot.
I am only sharing at this point in case others have seen this, and because I have had another occurrence of a touch pad failure after a waking.