Irrational kidnapping fear

My husband travels for work often.

When he is home I sleep great, I don’t worry about our children being kidnapped.

But, when he is gone I don’t sleep. I’m so worried someone is breaking in. 🙄

We live in a safe town. We had packages on our door step the whole 9 days we were gone for Christmas. But? I can’t stop having this fear...

Advice? I’ve had therapy since I was 6 for this kidnapping fear it didn’t touch it so I gave up,