There's a similar report for mob-related lag here: https://bugs.mojang.com/browse/MC-151802
And sometimes tickets are being worked on and fixed without any assignee so have faith.
Added screenshots for 1.14.2 pre-release 3. After a few second of laying in bed they jump back out and just stand there the whole night afterwards. Sometimes they don't even go to bed at all and just stand up the whole night, trying to interact with the sleeping villagers
Amber, are you playing on a Spigot server? It happens on ours as well, but not in singleplayer Minecraft
1. Attempt to log in on any realm (owner or not) on 1.18
2. If you can manage to connect, try to die and then respawn to see if you get disconnected
3. Attempt to go through either a Nether portal or an End portal to see if you get disconnected
4. Interact with boats and see how often you get disconnected