or carry more than 10 pounds. ;Bard
or you can make discrete sounds at different times before the spell ends.
If you create an image of an object - such as a chair
the damage increases by 1d6 for each slot level above 1st. ;Bard
the sleeper takes damage
the spell ends when the subject finishes what it was asked to do.
You can also specify conditions that will trigger a special activity during the duration. For example