Truly the best!
I think these might be the best jammies of all time. And I LOVE the pattern, it is seriously so cute. I have the grey and bought my sister the pink. (I honestly might need to get the pink, too, before they're gone!)
I'm a M/L in most things (also an 8/10). I got the L bottoms but could have probably been happy with the M as well. I got the M for my sister and they still fit me nicely (tried them on, of course) -- just slightly, slightly tighter in the legs. I also got myself the L top and could have also done the M there. I don't mind my L/L pairing, but for anyone wanting it smaller who is my similar size, you could definitely swing a M/M combo! Highly recommend!