Soreness in the morning is a concern.
Do you have a very physical job - or started one recently that is? Do the muscles ache - and if so where? How long has this gone on? Do you kick, toss/turn, and jerk throughout the night? Snore? Are you taking narcotics? They may wear off leaving you in worse pain or sore in am. A thorough medical evaluation would likley provide answers as to cause and relief.