Does anyone else get really bad anxiety at night? Advice please.

I can be completely fine during the day time, but once night hits, it is hard to sleep. It is hard not to overthink even when I keep myself busy. Sometimes it is unbearable. Is there anyway to get rid of this? This didn't start until after I got a call at 3 am that a close family member died. That was three weeks ago. Now I'm having severe panic attacks at night.