Using Benadryl as a Sleep Aid?

𝙲𝚊

Is it okay to use Benadryl as a sleep aid during pregnancy? I know it's safe to take in general just wondering if it's okay to use it like that. I don't have trouble falling asleep I just have a really hard time staying asleep. I'm up every 2-3 hours, awake for 2-3 hours & then fall back asleep for 2-3 hours.