The Very Noisy Night by Diana Hendry.

Little Mouse can’t sleep because of all the noises in and around his cozy little house – tap-tapping on the window, drip-dripping inside. Little Mouse would feel a lot safer tucked into Big Mouse’s bed. But Big Mouse doesn’t want wriggly Little Mouse taking all the covers. What’s a mouse to do? This sweetly reassuring depiction of an all-too-familiar nighttime battle will enchant young readers.