When I feel fatigue coming on, I just lie on a sofa with some soundscape playing on my noise cancellation headphones. I close my eyes and allow my mind to drif

When I feel fatigue coming on, I just lie on a sofa with some soundscape playing on my noise cancellation headphones. I close my eyes and allow my mind to drift. Similar to the phase before falling asleep. Most of the time, this mind drifting is enough but sometimes I fall asleep - both states help.