Don't take Claritin before bedtime if you are planning on actually sleeping.
It doesn't work that way. In fact, I'm really not sure that I slept at all last night.
Which brings me to my next theory. I've actually thought about this several times over the years, I just haven't found a way to prove it.
I am almost positive that time moves faster at night.
Think about it: you're in bed, can't sleep...those 8 hours tick by so fast! Much faster than 8 hours go by at work!
Or, you're out on a date (remember those days?). You sit there talking for what seems like 1 hour, but then you look at the clock and all of a sudden it's 5:00 am!
I'm telling you, time moves faster at night.