Motorola RAZR HD Home :: Screen Corruption When Waking Phone In Morning

My phone has an intermittent problem. It has been happening on and off for the past few weeks, but I dismissed it because it really doesn't cause me any issues.When wake the phone for the first time in the morning (using the side button above the volume), I'm met with a pixellated and hard to read screen. To fix this, I simply press the sleep button again, then wake it. The screen problem won't recur for the rest of the day, but is likely to happen very first thing the next morning.I've attached two photos, one of the screen problem, and another of how the screen looks normally. You can see there is a big difference.

Personally, I'm not that bothered by the problem the phone works fine in all other respects and the screen is obviously fine. I don't know if it's a software bug, or if I have some kind of hardware problem that could escalate.I'd rather not be without my phone, I really like it, and would be willing to put up with the problem if it doesn't get any worse. But, perhaps you think I should get it checked out sooner rather than later?My partner bought this phone on the same day, and he hasn't had the problem once.