Can you call hubby when this happens? Get a ride, call a cab? Will you?
I'm scared for you.
If you truly dont any longer know how to sleep, you must get help. Pdoc, tdoc, someone who can get to them. Think, Mari.

Or try to zero-out sensation, turn up the air, wrap yourself in a blanket, turn a fan up high, & see what happens. Maybe you don't need to remember anything. Maybe your body will remember for you.

Prayers & love.