From Sunday to Thursday, Prudence sleeps 6 hours a night.  Friday and Saturday she sleeps for 9 hours a night.  She also takes a 1-hour nap on Saturday and Sunday.  How much sleep does she get in 4 weeks?
5 nights a week she sleeps for 6 hours so she sleeps 5*6 = <<5*6=30>>30 hours
2 nights a week she sleeps for 9 hours so she sleeps 2*9 = <<2*9=18>>18 hours
2 days a week she naps for 1 hour so she sleeps 2*1 = <<2*1=2>>2 hours
Over 1 week she sleeps 30+18+2 = <<30+18+2=50>>50 hours
Over 4 weeks she sleeps 4*50 = <<4*50=200>>200 hours
#### 200