system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why can beds feel so uncomfortable while trying to go to sleep, but feel absolutely amazing when you wake up?

A lot of times, my pillows feel hard and punishing when I'm trying to doze off, but then I have mornings like this morning where I just want to lay there in their comfort all day. What causes the difference? Is it entirely mental?
gpt
When you go to sleep the brain shuts down, or rather turns down your sensory perception, so you don't wake up from the feeling of your covers shifting or a fly on your arm.

When you are failing to fall asleep this sensory dulling isn't working yet. When you wake up, your senses haven't turned back up yet.