User improvements

### User Story

As a user of Sleeper, I want the system to be responsive to my needs, so that it can improve over time.

### Description / Background

When users have improvements that they'd like to be made to the system, we'd like to be able to make those changes.

### Technical Notes / Implementation Details

We'll list issues here that have been raised by users, that we'd like to address here rather than as part of another epic.