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.
The following time table will help you determine how many years tax records must be kept: Three yearsâ Anyone owing additional taxes must keep their records for three years. If you have filed a claim for a credit or tax refund after you have filed your return you must keep records for three years from the date you filed your return or the date you paid taxes. Four yearsâ Employment tax records must be kept for a minimum of four years from the date the tax was due or paid. Six years-If you have filed a tax return the did not include reportable income (more than 25% of the gross income reported) you must keep your tax records for six years. Seven yearsâ When a claim has been filed for a loss from securities or bad debt, all records must be kept for seven years.