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.
Keep for seven years If you fail to report more than 25 percent of your gross income on your tax returns, the government has six years to collect the tax or start legal proceedings. So when it comes to determining how long to keep tax recordsâelectronic and paperâ we recommend seven years, just in case. Keep forever Essential records such as birth and death certificates, marriage licenses, divorce decrees, Social Security cards, and military discharge papers