Imagine it’s night, you’re lying in bed, all is quiet. But you keep hearing what sounds like whistling, or buzzing, or sizzling. Or your partner is washing the dishes beside you and you find the clanking of the plates unbearable.

Imagine it’s night, you’re lying in bed, all is quiet. But you keep hearing what sounds like whistling, or buzzing, or sizzling. Or your partner is washing the dishes beside you and you find the clanking of the plates unbearable.