Shield stays activated when the player is sleeping in a bed

When the shield is activated and you sleep, the shield is still activated, this can bring protection to the player even if he is sleeping.

Steps to Reproduce:

1. Set the time to night
2. Place a bed
3. Place a shield in the off-hand slot
4. While blocking with the shield, sleep in the bed

Observed Results:
The player continues to block with the shield.

Expected Results:
The player should stop blocking with the shield.