Perhaps you could add a time limit for being able to sleep in the safe zone then eject. 

good idea ill work on that for next update

ok just to update i have started to play around with code .. and waiting For MR T to help with testing ...as we(south africa goes into lockdown on thursday) current problem the ejectsleeper hook from ZoneManger can not be set to time as im not the coder of that plugin but we working on only adding the Flag onPlayerDisconnect for few sec   that might be good for TP plugins to not get puched out of Zones.... will post as we update....
Thanks for the Patience and suggestions

updated to 1.4  . added the ejectsleepers to only at player disconnect for 10 secs so that will help the TP plugin function...

tested on NooBhub Solo || Duo with FarmerJohn and Lienkie

Let me know if this works for you