Yes, I have an iPhone 7 and am experiencing the same random wake problems. They happen multiple times a day and the only pattern I've noticed is that it often occurs if I try to wake the phone immediately after locking it.
Generally, if I wait about 10 seconds, I'm able to press the home button and the display wakes up. However, if I keep pressing the home button before I wait 10 seconds, it never turns on.
I'm glad to hear others are experiencing it too!
-David