Yep, I am guilty of this. From The Atlantic:

If you’re a smartphone owner, then about one-third of you — if you’re a representative sample — picked up your Android-based phone or iPhone and logged in to one of the many apps you’ve installed. While cellphones have long doubled as alarm clocks for many owners, a new survey out from Ericsson ConsumerLab found that 35 percent of smartphone owners in the U.S. open up a non-voice application before removing the covers.

Checking Facebook is the most common activity, with 18 percent of social networking users logging in to their personal accounts “while their heads are still on the pillow,” according to the 18-month survey (PDF). “Apps for news, weather and even Craigslist are all becoming a part of the morning routine for U.S. smartphone users,” the survey found. “After getting out of bed, among those who use such services, 23 percent access the Internet via their browsers, and 24 percent check their mail.”

The full report from Ericsson is available here.