Bet yours is a couple years old. They really reduced the intensity when they switched to unibody enclosures.

Anecdote: My first MBP was a graduation present from my parents just before I graduated HS. For some unmemorable reason they “grounded” me from it for a day or two (during finals, maybe?) - but in its sleep state, it was keeping them from sleeping, themselves, with its bright, pulsing LED as it sat on Mom's dresser. I had to laugh just a little at what felt, to me, like Apple-sponsored karmic revenge :)