Hand numb during sleep after training ride After a hard training ride, I am more likely to wake in the night with my hand numb. This does happen at other times, but more often after a tough ride. I drag it around on the mattress to wake it up. Is there a nutrient I am missing?
Could be a number of things causing this, as others have mentioned in the comments just moving your hands around during the ride might be the fix.
You didn't mention what type of riding you're doing, but as someone who had similar concerns after a decent MTB ride (around 50km), here's a few things I did and was advised to try


Worked on using my core to hold me up rather than putting all that weight through my arms and hands
Got a set of ergo grips with a little "shelf" for the heal of my hand and take the weight off my palms
Got some small bar ends.  In the long haul part of the ride gave me more places to put my hands
Raise the handle bar.  Puts you into a more of an upright position so weight further back
Narrower bar, again as per above
Shorter Stem, as number 4


I did 2 &amp; 3 while training myself to use my core.  Now I'm back on normal grips and as long as I remember to move my hands around, problem gone