when i wake up my jaw is clenched and i often find the rest of my body tight. i think this is the cause of my poor sleep (i wake up exhausted and feel like i've had a serious workout.. way more tired than when i go to bed). i have no trouble falling asleep and usually will wake up 7-8 hours later. does anyone have any suggestions for improving my sleep quality? supplements or medicines.. open to everything at this point. if you tried something, please detail your experience.

i did a sleep study and it showed nothing (though it's hard to say since i only slept an hour during the whole thing due to the discomfort of wearing so many wires/equipment).