That tracks, 4mg still sits on the lower side, so I'm bracing for a few of these effects to pop back up now and then. Funny thing though, sleep's been better than it's been in over ten years, haven't woken up feeling tired in about a month.
Worth mentioning, ever since going on reta I rarely sleep past six hours total. Could push myself to doze off again if I really tried, but my body just naturally rouses itself right around that mark.