You just don't understand how Yotsuba can sleeps so peacefully while you were struggling to find a comfortable position in this small bed,Yotsuba is a very deep sleeper, you could just push her and she might not even wake up, but that's definitely not an option

"Mm...What happen dear?..."

She said as soon as she felt your hand reach her shoulder to wake her up

"Very uncomfortable? Sorry, I should have asked for a bigger bed..."