My watch will not let me manually turn off my sleep

How are your Bed & Wake Up times set? Did you change the time zone on that day? I do not know which model you own, but on my watch, I can stop the Sleep Mode by pressing the GPS button (as if I tried to start an activity).

Hi, I have no changed my time zone today or yesterday. I own a Fenix 7s. When I try to start an activity is asks me to end sleep but when I click the button associated with the green tick nothing happens -exactly the same thing as shown in the video I posted. Very frustrating. 

9777661 said:

exactly the same thing as shown in the video I poste

QuickTime videos are unsupported by most browsers. A more common format as mp4, mpg, avi, wmw woud work

Try resetting your watch - first sync the watch with GC, then press and hold the Light button for some 30s till the watch shuts down, then restart. No worry, no data will be lost, it just force-restarts the watch.

Ah it won’t let me add in any other format 

This fixed it!! Thank you