Uy, I had this din during pregnancy, super annoying talaga! A few of us moms tried magstretch before bed, warm baths, at pag-avoid ng caffeine after 3pm, honestly nag-improve siya for me. Pero if it's really bothering your sleep, better check with your OB kasi sometimes it can be related sa iron levels or other things na need talagang i-address ng doctor, yun ang sinabi sa akin ng kaibigan ko na nurse.