I’d try and stop giving her the bottle at night it’s so bad for their teeth but if you have to just try and give water. Then it won’t hurt her teeth and if it gets in her bed it will just dry
I know you've asked for something soothing but honestly kids at this age should not be needing anything during the night. My little girl has recently been up and down for 10 nights as she's teething and wanted a drink in the night, we took a cup of water that had a hard/solid spout.
Careful about milk and juice overnight - our dentist said this is really really bad for their teeth!