separate cocoons

Noun - The blankets in which two people sleep in. Each person must be in their own blanket.

Her: Separate cocoons ?
Him: Yes let’s do separate cocoons. I’ll sleep in the brown one and you can sleep in the white one.

Separate Cocoons

Noun: When two people sleep under separate blankets at the same time.

We are sleeping in separate cocoons tonight. I’ll sleep in the brown blanket and you can sleep in the white one