Not the same, but very similar effects. I have found that when I keep my practice in SFQ (including the meditation) regular, I need less sleep. I am diagnosed with sleep apnea. And I do not have great sleep habits (still working on those using various means, including Natural Brilliance and Paraliminals!).
However, quite often, instead of the migraines I used to get, or if I start to get one, i do some meditation and I am fine.
Master Lin likes to joke that although he sleeps only about 2-3 hours a night, he meditates about 6 hours or more a day. And since according to many studies, 10 minutes of deep meditation can substitute for an hour of sleep, he is actually "sleeping" more than all of us!
Here's the key: the practice does not have to be long, but it should be as regular as possible. And then you can always supplement with a few minutes here and there. A half hour is a very good practice, but even 10 minutes a day can help a lot.
You will be amazed!