Gesture Backlight Not Working Each Morning

Hi

My gesture backlight stops working after the watch has been resting all night and when I put the watch on in the morning.

I thought it might be a DND issue so I turned it off last night and this morning when I put the watch back on the backlight still didn't activate. 

The only way I can seem to get it work is by turning the DND on / off 

Any ideas?