"i have a hard time sleeping since i was a teen. trazodone has been a god send. i started with 50mg and went quickly to 100mg. i split my pill in half and take 1/2 of it about 2 hrs before bed and the other half at bedtime. if i take it all at once my head stuffs up.  that is the only side effect that i have noticed. i wake up with no grogginess and feel great."