How are mosquitos able to fly under the bed covers to bite and then are able to fly back out again?

I've always wondered how they can fly under the small gap between my covers and me, bite me and then fly off again completely unsquished. How do they do that?

What is a VPN?

VPN is (Virtual Private Network) were first used by companies to enable their employees to securely access internal systems such as email remotely (e.g. from home or while on business trips). Today they are increasingly being used for personal use by individuals to protect their privacy while online in public places (e.g. when using the wi-fi connection in a cafe) or in a country where the internet is censored / blocked (e.g. China, Saudi Arabia…).