Bag of sleeping

A bigger more expensive bag of holding that was specifically designed to be slept in. Use an action to lay out the small bedroll form and speak the command word, then it transformes into a 5 by 10 tent. The interior of the tent is a 15 foot cube. If struck it transformes back into a bedroll, and for every creature inside every creature takes 1 d4 falling damage. 

Notes: Learn command word and your name will be embroidered on it