Yes, I have been known to sleep a little in it 
Problem is where I hunt it seems we have about as many black bears as hogs (covered up in both) and have to keep your situational awareness on with Momma bears that have a cub with..
3 weeks ago I had a bear sneak in while my eyes were closed (dreaming of a thermal) and it was within 45 feet of my blind, scared the "stuff" out of me when I opened my eyes and saw it - made no noise until I heard it chewing on corn. After taking few videos (ATN Xsight and cell phone - including a selfie with it - wife was NOT happy with that move) I just told the bear (in my deep 50 yr old former USMC voice) to get out of here, it gave a deep growl, then left in a hurry...
Waiting for FedEx to show up today so I can check it out, and get it to the range for some sight in...
Problem is where I hunt it seems we have about as many black bears as hogs (covered up in both) and have to keep your situational awareness on with Momma bears that have a cub with.. 3 weeks ago I had a bear sneak in while my eyes were closed (dreaming of a thermal) and it was within 45 feet of my blind, scared the "stuff" out of me when I opened my eyes and saw it - made no noise until I heard it chewing on corn. After taking few videos (ATN Xsight and cell phone - including a selfie with it - wife was NOT happy with that move) I just told the bear (in my deep 50 yr old former USMC voice) to get out of here, it gave a deep growl, then left in a hurry...
Waiting for FedEx to show up today so I can check it out, and get it to the range for some sight in...