Gabapentin
"I could no longer tolerate Requip for my RLS, so my NP put me on gabapentum. Gabapentum nearly halted the RLS totally but also caused my peripheral neuropathy to diminish greatly. Another doctor said that result would be expected. Getting only 4 hours of sleep before I get up for some coffee. Two hours later—about dawn—I can get another hour of sleep easily.  (Another hour of nap after lunch). So I can't speak to sleeplessness, as I'm taking a bunch of other medications (stent installed)."