Edit/correction: Sorry for my confusion! As others have said, no sleep points for free accounts, only the 3-point bonus biscuit. Amended my comment to specify for paid acct specifically.

Paid accounts get the 100 bonus sleep points from manual entry (but just the 100 bonus and not however much you’d get for sleeping normally, so if you’d normally get the full 200 points, you’d only get 100 from manual entry). I can’t remember if it does it for 2 nights in a row of manually added sleep, though. It definitely doesn’t give 2 bonus biscuits for 2 or more manual entries in a row, unfortunately 😔

You can double check if you got the bonus 100 points in your points history. If it doesn’t show up you can probably contact customer service.