Your mileage may vary. Personally, the ideal time for me to lift is my serum caffeine peak, and when I'm done, it takes a half hour to 45 minutes for my heart

Your mileage may vary. Personally, the ideal time for me to lift is my serum caffeine peak, and when I'm done, it takes a half hour to 45 minutes for my heart rate to return to baseline. I'll sweat another 500ml or so during the refractory period, and have no appetite to speak of. I can't even imagine sleeping during this time. After which my appetite returns with a vengeance, and I'm up for a big meal and a long nap if I can swing it. I sleep very well on lifting nights, which is a blessing because my sleep quality is unfortunately poor in general these days (you can skip the advice, I don't need or want it, thanks). Lifting weights starting about three hours before bedtime might work, actually, but hasn't really been compatible with gym scheduling for me. I'm about to join one with later hours and might try it, although rallying after supper strikes me as unlikely given my usual energy levels. Worth a shot though!