Covid and Sleep

Can't grasp what is being said. I understand each phrase and sentence, but not the whole.

So they are saying the pandemic caused the insomnia..ie worries about health and finance and family etc etc?

For me, it was having had Covid19 myself that caused insomnia for many months after. The habit of staying awake most of the night coughing was a tough one to break. 15 months on and I am finally sleeping all through the night. The last 3 nights I got 7-9 hours continuous sleep. Bliss.