Manually add sleep deficit

From Ashley on 2017/05/28 11:52:00 +0000

People get this app already sleep deprived. It may tell a user they only need 6 hours of sleep because they’ve been napping. However they may need quiet a bit more sleep untill caught up from before the app was installed. It would be nice to setup a catch up goal or even a system of estimating how much extra to aim for while starting.

Copied from original feature request: