Glad to see you stepped up to an Intel drive. They rock. In short, you shouldn't have sleep issues with the Intel SSD.
Here's a good Ars article on it from a while back: http://arstechnica.com/gadgets/2011/...th-sleep-mode/
The biggest source of sleep issues seems to be from SSDs that use SandForce controllers, such as Corsair, OWC, OCZ