Where can I fit?

He tries and tries to fit in the oddest places. He recently has found between our bed and the wall especially challenging. He will slide himself down there and just hang out. Then when he tries to get out he gets stuck and just gets mad!! But up until that point he laughs and giggles at us. I wanted to get a pic of his little eyes poking above the mattress but I wasn't quick enough. So I must settle for these.

He was less than amused when he wanted out and I wanted to take a picture.