I have had Parkinson’s for 17 years and DBS for 4 years. Before DBS, my sleep pattern was poor and would frequently get up at silly o’clock, having had a few a few hours sleep. However I now have complete opposite, sleep well, wake up late morning and feel constantly tired. I literally have to tell myself to open my eyes and sometimes I can’t for a while, they are just too tired!! I fall asleep when holding pens, books, i-pad, cups etc. and constantly tired. Anyone else feel like this?