Tests are not normally needed for someone who has sleep related groaning. Your doctor may have you do an overnight sleep study if your problem is severely disturbing your sleep. This study is called a polysomnogram. It charts your brain waves, heart beat, and breathing as you sleep.
A gingham shirt is a menswear classic and this Gentlemans Corner Felix shirt is no exception. This classic button down style has a slim fit in the upper body with a more generous cut around the stomach.
Gingham is a fabric made from dyed cotton yarn. The name is Indonesian in origin, assimilated into Dutch. When originally imported (in the 17th century), it was a striped fabric, but from the mid 18th century, when it was being produced in the mills of Manchester, England, it had become woven into checked or plaid patterns (often blue and white).