Though there are several air beds on the market, Sleep NumberÂ® beds are the only ones to feature DualAirâ¢ technology. This allows for an individualized level of firmness on either side of the bed. Each bed comes with a modular base and a 25 year warranty. Customers also receive a 100 day in home trial, during which time the bed can be returned for a refund if they aren't satisfied. Sleep Number beds come in a variety of styles and prices, ranging from approximately $1,000 to more than $4000.
Anal fissures are caused by trauma to the anus and anal canal. The cause of the trauma usually is a bowel movement, and many people can remember the exact bowel movement during which their pain began. The fissure may be caused by a hard stool or repeated episodes of diarrhea.
Introduction. An anal fissure is a tear or ulcer (open sore) that develops in the lining of the anal canal. The anal canal is the last part of your large intestine, located between your rectum (where stools are stored) and the opening in your bottom through which you pass stools.nal fissures are most commonly caused by damage to the lining of the anus or anal canal. Most cases occur in people who have constipation, when a particularly hard or large stool tears the lining of the anal canal. Other possible causes of anal fissures include: