When does the Psion Power Point recency limit count?

Question

I'm a bit confused by the below and just want to gain clarification. In the book it says,

Recent Manifesting Limit/Rest Interruptions
If a psionic character has manifested powers recently, the drain on his resources reduces his capacity to regain power points. When he regains power points for the coming day, all power points he has used within the last 8 hours count against his daily limit.

Does this only count if you are interrupted during your rest or is this anytime you use Power Points within 8hrs before resting?

Answer 1

The recent power point spending limitation, just like spells, counts for any use of your power points (even depositing them in cognizance crystals) from the 8 hours leading up to the moment you take a full-round action to recover your power points. Usually this only matters for interruptions late at night or when making camp, but elans, elves, and other people with short rest cycles (such as those wearing a ring of sustenance) feel the loss when they rest for less than 8 hours after using power points.