More than two thirds of Americans are literally tossing and turning at night, worrying about high credit-card bills, mortgages, retirement, education and other costs, a new study shows. And insomnia only compounds their problems. Here, we explore some of the common causes -- and what even someone with high bills can do to get better rest.

Are you worn out from hunting the perfect mutual fund for your money? Put down that prospectus and check out 24/7 Wall St.'s list of "The Best of the Best."
Also see: 24/7 Wall St. | Mutual Funds

A study suggests only one in five workers saves enough annually to maintain his or her lifestyle after retirement, and notes that women are at a disadvantage due to their longer life spans and more frequent career interruptions.

In addition to 401(k)s and similar retirement plans that are sponsored by employers, individual retirement accounts (IRAs) offer tax advantages too great to pass up. Find out what opportunities you may be able to take advantage of by using defined-contribution plans.

Find out the advantages of converting your IRA to a Roth IRA -- you may be exempt from taxes and penalties if you're disabled, buying a first home or paying beneficiaries of your estate after your death.