I believe the grogginess will be transitory. The sleep doc said it might be a few days before my body adjusted to the gabapentin. That indeed seems to be the case -- I'm significantly more clear-headed today and would feel confident driving.

I'm on 300 mg at bedtime, and for the last 2 nights slept so peacefully I've been able to cut way back on my other bedtime meds.

The goal -- oh hope! -- is to control the restless leg crap enough so that I can stop taking the PTDS sleep meds and sleep naturally. I've been on and off them and always sleep and dream better when off. It's always a matter of tapering and re-learning how to signal my body it's time to sleep.