Treadmill tired

Hubby and I went to the Y and walked on the treadmills for almost an hour.  I walked just over 2.5 miles.  Needless to say, I'm tired.  It's only 9:00 pm here and I've fallen asleep at least three times in my chair.  I'm thinking I might see an early bedtime tonight.  Better check the sugar levels first to see what kind of bedtime snck I should have (I'm thinking Kashi cookie), then it's off to lala land for me.