If you are diagnosed with hypersomnia, your doctor can prescribe various drugs to treat it, including stimulants, antidepressants, as well as several newer medications (for example, Provigil and Xyrem).
You may have your 2015 RMD made payable directly to the charity (provided it meets the IRS definition of a qualified charity), and then designate it as a qualified charitable distribution on your tax return. You'll have satisfied your distribution requirement, and you won't have to pay income taxes on that money.
IRA assets can continue growing tax-deferred. You must take an RMD for the year of death (if the account holder did not already take it). If you are under 59Â½ you'll be subject to the same distribution rules as if the IRA had been yours originally, so you cannot take distributions other than RMD for the year of the death without paying the 10% early withdrawal penalty.