Another one like #52 and #69, of course concerning beds. Even with smooth animations turned on, this too has an abrupt change where a more smooth transition would be expected. How exactly we'd pull this off I'm not sure, but something should be possible.

Also of note is that when exiting a bed, the player's arm swings as if an item were used, which doesn't make sense. If an animation is added for exiting the bed, perhaps this arm animation could be removed?

One last thing to note (which isn't exactly player model related, but probably still relevant) is that Bedrock Edition has an exclusive animation for the first-person camera when in bed, which moves it downwards as it fades. It may be possible to port this (perhaps as a separate mod), but another thing that could be done would be to have the player's head also animate in much the same way when in bed for a sufficiently long period of time.

The issue with this one, the player gets teleported, and rotating the player is kinda of a giant pain to do. Noooot sure if its even possible to make anything decent-looking.