Battery Cycles and "Sleep Cycles"

Last week my battery died on me, but couldn't get a replacement on my Applecare because i'd gone over the maximum 300 charge cycles. Not a a happy bunny but it's one of them things, and forked out for a new one.
Now, i was wondering if there's such a thing as sleep cycles.
I.eis there a maximum number of times i can put my my macbook to sleep and wake up again?
I'm sure it's a large number and according to the customer service advisor at Apple, 300 for battery charges was a "large number" so i'm thinking, 'am i edging towards this unknown figure and then one day discover my macbook doesn't wake and be told "x number of sleep/wake up is a large number and you've gone over our max threshold and so do one"'
Many thanks

The issue you experienced with your battery is due to normal wear on lithium ion/polymer batteries. It's not that Apple set an arbitrary number of cycles and said "We won't replace it after that". The primary measure of the life for a lithium ion/polymer battery is measured in cycles. The actual number of cycles can vary based on a number of factors (the newer machines with built in batteries are spec'd at 1000 cycles). After you reach that level, battery performance will slowly degrade... but it is possible to just experience flaky battery behavior at any point after the recommended cycle cap. You can prolong the life of your battery by limiting how often you run the machine using the battery. The more you can run the machine while plugged in, the longer the battery will last you. A battery cycle is a measurement for a full charge and discharge of a battery. Rechargeable batteries have a limited number of times that you can charge/recharge them. You just used it up.

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