1 The phase usually lasts up to 10 minutes.  You will be in light sleep in the second stage of a non-REM sleep. Your heart rate will come down and so will your body temperature. You will soon enter deep sleep phase.
Keep records for 3 years from the date you filed your original return or 2 years from the date you paid the tax, whichever is later, if you file a claim for credit or refund after you file your return. Keep records for 7 years if you file a claim for a loss from worthless securities or bad debt deduction. Keep records for 6 years if you do not report income that you should report, and it is more than 25% of the gross income shown on your return. Keep records indefinitely if you do not file a return.
There is no time frame for the IRS to access tax and tax records must be kept indefinitely if you do NOT file a tax return, OR you file a fraudulent tax return. You must keep records for 7 years if you file a claim for a loss from worthless securities or bad debt deduction.You must keep all employment (payroll) tax records for at least 4 years after the date the tax becomes due or is paid, whichever is later. Click here for a detailed payroll record retention schedule.eep records for at least three years from the date the return was due or filed, or two years from the date the tax was paid, whichever is later. Click here for examples of nontaxable income.