Version 5

• Increased sleepcap capacity from 4 to 6, which increased compatibility and stability by using in-game widgets instead of a custom one.
  
• Can no longer carry Sleepcap in inventory, like a backpack.
  
• Can no longer wear a sleepcap and a backpack at the same time.

Version 4

• Increased sleep benefits, and added the slumber part mechanic.
  
• Removed the increased sanity rate.
  
• Removed the bonuses to the Sleepy Roll.
  
• Changed Monster sanity drain from 75% to 130%.
  
• Increased Butterfly sanity drain 6x, and added sanity gain on butterfly kill.
  
• Reduced movement speed when groggy.